Home / 28,125.63-38,814.17-15,551.19

Finding the Fourth Proportional to 28,125.63, 38,814.17 and 15,551.19

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Solution

The fourth proportional to 28,125.63, 38,814.17 and 15,551.19 is: 21,461.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,125.63 : 38,814.17 = 15,551.19 : x
  2. Step 2: Convert to fraction form
    28,125.63/38,814.17 = 15,551.19/x
  3. Step 3: Cross multiply
    28,125.63x = 38,814.17 × 15,551.19
  4. Step 4: Simplify right side
    28,125.63x = 603,606,532.36
  5. Step 5: Solve for x
    x = 603,606,532.36/28,125.63
  6. Step 6: Final answer
    x = 21,461.08

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Half scale
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Double scale
Find fourth proportional to 28,126.63, 38,815.55 and 15,552.19
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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.