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Finding the Fourth Proportional to 21,347.57, 32,004.90 and 8,020.28

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Solution

The fourth proportional to 21,347.57, 32,004.90 and 8,020.28 is: 12,024.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,347.57 : 32,004.90 = 8,020.28 : x
  2. Step 2: Convert to fraction form
    21,347.57/32,004.90 = 8,020.28/x
  3. Step 3: Cross multiply
    21,347.57x = 32,004.90 × 8,020.28
  4. Step 4: Simplify right side
    21,347.57x = 256,688,339.38
  5. Step 5: Solve for x
    x = 256,688,339.38/21,347.57
  6. Step 6: Final answer
    x = 12,024.24

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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.