Home / 38,595.72-57,864.38-12,285.30

Finding the Fourth Proportional to 38,595.72, 57,864.38 and 12,285.30

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Solution

The fourth proportional to 38,595.72, 57,864.38 and 12,285.30 is: 18,418.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,595.72 : 57,864.38 = 12,285.30 : x
  2. Step 2: Convert to fraction form
    38,595.72/57,864.38 = 12,285.30/x
  3. Step 3: Cross multiply
    38,595.72x = 57,864.38 × 12,285.30
  4. Step 4: Simplify right side
    38,595.72x = 710,881,267.61
  5. Step 5: Solve for x
    x = 710,881,267.61/38,595.72
  6. Step 6: Final answer
    x = 18,418.66

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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.