Home / 38,587.50-57,881.12-12,294.36

Finding the Fourth Proportional to 38,587.50, 57,881.12 and 12,294.36

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Solution

The fourth proportional to 38,587.50, 57,881.12 and 12,294.36 is: 18,441.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,587.50 : 57,881.12 = 12,294.36 : x
  2. Step 2: Convert to fraction form
    38,587.50/57,881.12 = 12,294.36/x
  3. Step 3: Cross multiply
    38,587.50x = 57,881.12 × 12,294.36
  4. Step 4: Simplify right side
    38,587.50x = 711,611,265.01
  5. Step 5: Solve for x
    x = 711,611,265.01/38,587.50
  6. Step 6: Final answer
    x = 18,441.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.