Home / 39,342.74-54,292.27-21,437.87

Finding the Fourth Proportional to 39,342.74, 54,292.27 and 21,437.87

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Solution

The fourth proportional to 39,342.74, 54,292.27 and 21,437.87 is: 29,583.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,342.74 : 54,292.27 = 21,437.87 : x
  2. Step 2: Convert to fraction form
    39,342.74/54,292.27 = 21,437.87/x
  3. Step 3: Cross multiply
    39,342.74x = 54,292.27 × 21,437.87
  4. Step 4: Simplify right side
    39,342.74x = 1,163,910,626.26
  5. Step 5: Solve for x
    x = 1,163,910,626.26/39,342.74
  6. Step 6: Final answer
    x = 29,583.87

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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.