Home / 26,915.66-37,143.04-14,978.28

Finding the Fourth Proportional to 26,915.66, 37,143.04 and 14,978.28

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Solution

The fourth proportional to 26,915.66, 37,143.04 and 14,978.28 is: 20,669.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,915.66 : 37,143.04 = 14,978.28 : x
  2. Step 2: Convert to fraction form
    26,915.66/37,143.04 = 14,978.28/x
  3. Step 3: Cross multiply
    26,915.66x = 37,143.04 × 14,978.28
  4. Step 4: Simplify right side
    26,915.66x = 556,338,853.17
  5. Step 5: Solve for x
    x = 556,338,853.17/26,915.66
  6. Step 6: Final answer
    x = 20,669.71

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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.