Home / 21,432.06-32,156.73-9,750.78

Finding the Fourth Proportional to 21,432.06, 32,156.73 and 9,750.78

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Solution

The fourth proportional to 21,432.06, 32,156.73 and 9,750.78 is: 14,630.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,432.06 : 32,156.73 = 9,750.78 : x
  2. Step 2: Convert to fraction form
    21,432.06/32,156.73 = 9,750.78/x
  3. Step 3: Cross multiply
    21,432.06x = 32,156.73 × 9,750.78
  4. Step 4: Simplify right side
    21,432.06x = 313,553,199.75
  5. Step 5: Solve for x
    x = 313,553,199.75/21,432.06
  6. Step 6: Final answer
    x = 14,630.10

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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.