Home / 38,732.80-58,070.40-21,222.40

Finding the Fourth Proportional to 38,732.80, 58,070.40 and 21,222.40

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Solution

The fourth proportional to 38,732.80, 58,070.40 and 21,222.40 is: 31,817.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,732.80 : 58,070.40 = 21,222.40 : x
  2. Step 2: Convert to fraction form
    38,732.80/58,070.40 = 21,222.40/x
  3. Step 3: Cross multiply
    38,732.80x = 58,070.40 × 21,222.40
  4. Step 4: Simplify right side
    38,732.80x = 1,232,393,256.96
  5. Step 5: Solve for x
    x = 1,232,393,256.96/38,732.80
  6. Step 6: Final answer
    x = 31,817.82

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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.