Home / 15,432.70-23,149.05-4,339.75

Finding the Fourth Proportional to 15,432.70, 23,149.05 and 4,339.75

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Solution

The fourth proportional to 15,432.70, 23,149.05 and 4,339.75 is: 6,509.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,432.70 : 23,149.05 = 4,339.75 : x
  2. Step 2: Convert to fraction form
    15,432.70/23,149.05 = 4,339.75/x
  3. Step 3: Cross multiply
    15,432.70x = 23,149.05 × 4,339.75
  4. Step 4: Simplify right side
    15,432.70x = 100,461,089.74
  5. Step 5: Solve for x
    x = 100,461,089.74/15,432.70
  6. Step 6: Final answer
    x = 6,509.63

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Double scale
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Similar ratio
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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.