Home / 21,614.10-32,420.04-7,569.78

Finding the Fourth Proportional to 21,614.10, 32,420.04 and 7,569.78

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Solution

The fourth proportional to 21,614.10, 32,420.04 and 7,569.78 is: 11,354.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,614.10 : 32,420.04 = 7,569.78 : x
  2. Step 2: Convert to fraction form
    21,614.10/32,420.04 = 7,569.78/x
  3. Step 3: Cross multiply
    21,614.10x = 32,420.04 × 7,569.78
  4. Step 4: Simplify right side
    21,614.10x = 245,412,570.39
  5. Step 5: Solve for x
    x = 245,412,570.39/21,614.10
  6. Step 6: Final answer
    x = 11,354.28

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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.