Home / 27,948.44-38,569-15,201.76

Finding the Fourth Proportional to 27,948.44, 38,569 and 15,201.76

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Solution

The fourth proportional to 27,948.44, 38,569 and 15,201.76 is: 20,978.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,948.44 : 38,569 = 15,201.76 : x
  2. Step 2: Convert to fraction form
    27,948.44/38,569 = 15,201.76/x
  3. Step 3: Cross multiply
    27,948.44x = 38,569 × 15,201.76
  4. Step 4: Simplify right side
    27,948.44x = 586,316,681.44
  5. Step 5: Solve for x
    x = 586,316,681.44/27,948.44
  6. Step 6: Final answer
    x = 20,978.51

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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.