Home / 28,432.90-42,645.30-9,713.80

Finding the Fourth Proportional to 28,432.90, 42,645.30 and 9,713.80

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Solution

The fourth proportional to 28,432.90, 42,645.30 and 9,713.80 is: 14,569.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,432.90 : 42,645.30 = 9,713.80 : x
  2. Step 2: Convert to fraction form
    28,432.90/42,645.30 = 9,713.80/x
  3. Step 3: Cross multiply
    28,432.90x = 42,645.30 × 9,713.80
  4. Step 4: Simplify right side
    28,432.90x = 414,247,915.14
  5. Step 5: Solve for x
    x = 414,247,915.14/28,432.90
  6. Step 6: Final answer
    x = 14,569.32

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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.