Home / 42,143.40-58,153.68-23,279.31

Finding the Fourth Proportional to 42,143.40, 58,153.68 and 23,279.31

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Solution

The fourth proportional to 42,143.40, 58,153.68 and 23,279.31 is: 32,123.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,143.40 : 58,153.68 = 23,279.31 : x
  2. Step 2: Convert to fraction form
    42,143.40/58,153.68 = 23,279.31/x
  3. Step 3: Cross multiply
    42,143.40x = 58,153.68 × 23,279.31
  4. Step 4: Simplify right side
    42,143.40x = 1,353,777,544.36
  5. Step 5: Solve for x
    x = 1,353,777,544.36/42,143.40
  6. Step 6: Final answer
    x = 32,123.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.