Home / 38,939.04-58,422.13-12,289.14

Finding the Fourth Proportional to 38,939.04, 58,422.13 and 12,289.14

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Solution

The fourth proportional to 38,939.04, 58,422.13 and 12,289.14 is: 18,437.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,939.04 : 58,422.13 = 12,289.14 : x
  2. Step 2: Convert to fraction form
    38,939.04/58,422.13 = 12,289.14/x
  3. Step 3: Cross multiply
    38,939.04x = 58,422.13 × 12,289.14
  4. Step 4: Simplify right side
    38,939.04x = 717,957,703.95
  5. Step 5: Solve for x
    x = 717,957,703.95/38,939.04
  6. Step 6: Final answer
    x = 18,437.99

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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.