Home / 38,689.04-58,034.92-12,390.36

Finding the Fourth Proportional to 38,689.04, 58,034.92 and 12,390.36

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Solution

The fourth proportional to 38,689.04, 58,034.92 and 12,390.36 is: 18,585.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,689.04 : 58,034.92 = 12,390.36 : x
  2. Step 2: Convert to fraction form
    38,689.04/58,034.92 = 12,390.36/x
  3. Step 3: Cross multiply
    38,689.04x = 58,034.92 × 12,390.36
  4. Step 4: Simplify right side
    38,689.04x = 719,073,551.37
  5. Step 5: Solve for x
    x = 719,073,551.37/38,689.04
  6. Step 6: Final answer
    x = 18,585.98

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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.