Home / 19,765.48-27,276.28-10,690.80

Finding the Fourth Proportional to 19,765.48, 27,276.28 and 10,690.80

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Solution

The fourth proportional to 19,765.48, 27,276.28 and 10,690.80 is: 14,753.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,765.48 : 27,276.28 = 10,690.80 : x
  2. Step 2: Convert to fraction form
    19,765.48/27,276.28 = 10,690.80/x
  3. Step 3: Cross multiply
    19,765.48x = 27,276.28 × 10,690.80
  4. Step 4: Simplify right side
    19,765.48x = 291,605,254.22
  5. Step 5: Solve for x
    x = 291,605,254.22/19,765.48
  6. Step 6: Final answer
    x = 14,753.26

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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.