Home / 28,237.38-38,972.25-15,666.18

Finding the Fourth Proportional to 28,237.38, 38,972.25 and 15,666.18

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Solution

The fourth proportional to 28,237.38, 38,972.25 and 15,666.18 is: 21,621.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,237.38 : 38,972.25 = 15,666.18 : x
  2. Step 2: Convert to fraction form
    28,237.38/38,972.25 = 15,666.18/x
  3. Step 3: Cross multiply
    28,237.38x = 38,972.25 × 15,666.18
  4. Step 4: Simplify right side
    28,237.38x = 610,546,283.51
  5. Step 5: Solve for x
    x = 610,546,283.51/28,237.38
  6. Step 6: Final answer
    x = 21,621.92

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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.