Home / 21,505.76-32,262.40-9,820.16

Finding the Fourth Proportional to 21,505.76, 32,262.40 and 9,820.16

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Solution

The fourth proportional to 21,505.76, 32,262.40 and 9,820.16 is: 14,731.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,505.76 : 32,262.40 = 9,820.16 : x
  2. Step 2: Convert to fraction form
    21,505.76/32,262.40 = 9,820.16/x
  3. Step 3: Cross multiply
    21,505.76x = 32,262.40 × 9,820.16
  4. Step 4: Simplify right side
    21,505.76x = 316,821,929.98
  5. Step 5: Solve for x
    x = 316,821,929.98/21,505.76
  6. Step 6: Final answer
    x = 14,731.96

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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.