Home / 26,915.20-37,142.47-14,978.43

Finding the Fourth Proportional to 26,915.20, 37,142.47 and 14,978.43

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Solution

The fourth proportional to 26,915.20, 37,142.47 and 14,978.43 is: 20,669.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,915.20 : 37,142.47 = 14,978.43 : x
  2. Step 2: Convert to fraction form
    26,915.20/37,142.47 = 14,978.43/x
  3. Step 3: Cross multiply
    26,915.20x = 37,142.47 × 14,978.43
  4. Step 4: Simplify right side
    26,915.20x = 556,335,886.92
  5. Step 5: Solve for x
    x = 556,335,886.92/26,915.20
  6. Step 6: Final answer
    x = 20,669.95

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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.