Home / 26,915.68-37,139.07-14,978.91

Finding the Fourth Proportional to 26,915.68, 37,139.07 and 14,978.91

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Solution

The fourth proportional to 26,915.68, 37,139.07 and 14,978.91 is: 20,668.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,915.68 : 37,139.07 = 14,978.91 : x
  2. Step 2: Convert to fraction form
    26,915.68/37,139.07 = 14,978.91/x
  3. Step 3: Cross multiply
    26,915.68x = 37,139.07 × 14,978.91
  4. Step 4: Simplify right side
    26,915.68x = 556,302,787.01
  5. Step 5: Solve for x
    x = 556,302,787.01/26,915.68
  6. Step 6: Final answer
    x = 20,668.35

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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.