Home / 38,966.61-58,456.80-12,666.72

Finding the Fourth Proportional to 38,966.61, 58,456.80 and 12,666.72

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Solution

The fourth proportional to 38,966.61, 58,456.80 and 12,666.72 is: 19,002.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,966.61 : 58,456.80 = 12,666.72 : x
  2. Step 2: Convert to fraction form
    38,966.61/58,456.80 = 12,666.72/x
  3. Step 3: Cross multiply
    38,966.61x = 58,456.80 × 12,666.72
  4. Step 4: Simplify right side
    38,966.61x = 740,455,917.70
  5. Step 5: Solve for x
    x = 740,455,917.70/38,966.61
  6. Step 6: Final answer
    x = 19,002.32

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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.