Home / 28,304.18-39,060.12-15,558.75

Finding the Fourth Proportional to 28,304.18, 39,060.12 and 15,558.75

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Solution

The fourth proportional to 28,304.18, 39,060.12 and 15,558.75 is: 21,471.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,304.18 : 39,060.12 = 15,558.75 : x
  2. Step 2: Convert to fraction form
    28,304.18/39,060.12 = 15,558.75/x
  3. Step 3: Cross multiply
    28,304.18x = 39,060.12 × 15,558.75
  4. Step 4: Simplify right side
    28,304.18x = 607,726,368.96
  5. Step 5: Solve for x
    x = 607,726,368.96/28,304.18
  6. Step 6: Final answer
    x = 21,471.26

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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.