Home / 27,356.64-37,752.21-14,781.42

Finding the Fourth Proportional to 27,356.64, 37,752.21 and 14,781.42

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Solution

The fourth proportional to 27,356.64, 37,752.21 and 14,781.42 is: 20,398.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,356.64 : 37,752.21 = 14,781.42 : x
  2. Step 2: Convert to fraction form
    27,356.64/37,752.21 = 14,781.42/x
  3. Step 3: Cross multiply
    27,356.64x = 37,752.21 × 14,781.42
  4. Step 4: Simplify right side
    27,356.64x = 558,031,271.94
  5. Step 5: Solve for x
    x = 558,031,271.94/27,356.64
  6. Step 6: Final answer
    x = 20,398.38

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Find fourth proportional to 13,678.32, 18,876.11 and 7,390.71
Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.