Home / 32,220.57-48,306.55-21,130.05

Finding the Fourth Proportional to 32,220.57, 48,306.55 and 21,130.05

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Solution

The fourth proportional to 32,220.57, 48,306.55 and 21,130.05 is: 31,679.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,220.57 : 48,306.55 = 21,130.05 : x
  2. Step 2: Convert to fraction form
    32,220.57/48,306.55 = 21,130.05/x
  3. Step 3: Cross multiply
    32,220.57x = 48,306.55 × 21,130.05
  4. Step 4: Simplify right side
    32,220.57x = 1,020,719,816.83
  5. Step 5: Solve for x
    x = 1,020,719,816.83/32,220.57
  6. Step 6: Final answer
    x = 31,679.14

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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.