Home / 25,619.92-38,430.90-8,089.74

Finding the Fourth Proportional to 25,619.92, 38,430.90 and 8,089.74

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Solution

The fourth proportional to 25,619.92, 38,430.90 and 8,089.74 is: 12,134.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,619.92 : 38,430.90 = 8,089.74 : x
  2. Step 2: Convert to fraction form
    25,619.92/38,430.90 = 8,089.74/x
  3. Step 3: Cross multiply
    25,619.92x = 38,430.90 × 8,089.74
  4. Step 4: Simplify right side
    25,619.92x = 310,895,948.52
  5. Step 5: Solve for x
    x = 310,895,948.52/25,619.92
  6. Step 6: Final answer
    x = 12,134.93

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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.