Home / 19,432.40-29,132.60-8,347.60

Finding the Fourth Proportional to 19,432.40, 29,132.60 and 8,347.60

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Solution

The fourth proportional to 19,432.40, 29,132.60 and 8,347.60 is: 12,514.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,432.40 : 29,132.60 = 8,347.60 : x
  2. Step 2: Convert to fraction form
    19,432.40/29,132.60 = 8,347.60/x
  3. Step 3: Cross multiply
    19,432.40x = 29,132.60 × 8,347.60
  4. Step 4: Simplify right side
    19,432.40x = 243,187,291.76
  5. Step 5: Solve for x
    x = 243,187,291.76/19,432.40
  6. Step 6: Final answer
    x = 12,514.53

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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.