Home / 42,897.40-64,346.15-11,732.65

Finding the Fourth Proportional to 42,897.40, 64,346.15 and 11,732.65

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Solution

The fourth proportional to 42,897.40, 64,346.15 and 11,732.65 is: 17,598.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,897.40 : 64,346.15 = 11,732.65 : x
  2. Step 2: Convert to fraction form
    42,897.40/64,346.15 = 11,732.65/x
  3. Step 3: Cross multiply
    42,897.40x = 64,346.15 × 11,732.65
  4. Step 4: Simplify right side
    42,897.40x = 754,950,659.27
  5. Step 5: Solve for x
    x = 754,950,659.27/42,897.40
  6. Step 6: Final answer
    x = 17,598.99

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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.