Home / 28,937.06-39,921.88-18,177.32

Finding the Fourth Proportional to 28,937.06, 39,921.88 and 18,177.32

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Solution

The fourth proportional to 28,937.06, 39,921.88 and 18,177.32 is: 25,077.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,937.06 : 39,921.88 = 18,177.32 : x
  2. Step 2: Convert to fraction form
    28,937.06/39,921.88 = 18,177.32/x
  3. Step 3: Cross multiply
    28,937.06x = 39,921.88 × 18,177.32
  4. Step 4: Simplify right side
    28,937.06x = 725,672,787.76
  5. Step 5: Solve for x
    x = 725,672,787.76/28,937.06
  6. Step 6: Final answer
    x = 25,077.63

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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.