Home / 21,700.10-32,549.51-6,909.90

Finding the Fourth Proportional to 21,700.10, 32,549.51 and 6,909.90

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Solution

The fourth proportional to 21,700.10, 32,549.51 and 6,909.90 is: 10,364.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,700.10 : 32,549.51 = 6,909.90 : x
  2. Step 2: Convert to fraction form
    21,700.10/32,549.51 = 6,909.90/x
  3. Step 3: Cross multiply
    21,700.10x = 32,549.51 × 6,909.90
  4. Step 4: Simplify right side
    21,700.10x = 224,913,824.60
  5. Step 5: Solve for x
    x = 224,913,824.60/21,700.10
  6. Step 6: Final answer
    x = 10,364.65

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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.