Home / 42,743.92-58,989.40-28,381.26

Finding the Fourth Proportional to 42,743.92, 58,989.40 and 28,381.26

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Solution

The fourth proportional to 42,743.92, 58,989.40 and 28,381.26 is: 39,167.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,743.92 : 58,989.40 = 28,381.26 : x
  2. Step 2: Convert to fraction form
    42,743.92/58,989.40 = 28,381.26/x
  3. Step 3: Cross multiply
    42,743.92x = 58,989.40 × 28,381.26
  4. Step 4: Simplify right side
    42,743.92x = 1,674,193,498.64
  5. Step 5: Solve for x
    x = 1,674,193,498.64/42,743.92
  6. Step 6: Final answer
    x = 39,167.99

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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.