Home / 25,439.55-38,159.15-7,909.35

Finding the Fourth Proportional to 25,439.55, 38,159.15 and 7,909.35

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Solution

The fourth proportional to 25,439.55, 38,159.15 and 7,909.35 is: 11,863.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,439.55 : 38,159.15 = 7,909.35 : x
  2. Step 2: Convert to fraction form
    25,439.55/38,159.15 = 7,909.35/x
  3. Step 3: Cross multiply
    25,439.55x = 38,159.15 × 7,909.35
  4. Step 4: Simplify right side
    25,439.55x = 301,814,033.51
  5. Step 5: Solve for x
    x = 301,814,033.51/25,439.55
  6. Step 6: Final answer
    x = 11,863.97

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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.