Home / 39,325.30-54,269.80-21,421.26

Finding the Fourth Proportional to 39,325.30, 54,269.80 and 21,421.26

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Solution

The fourth proportional to 39,325.30, 54,269.80 and 21,421.26 is: 29,561.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,325.30 : 54,269.80 = 21,421.26 : x
  2. Step 2: Convert to fraction form
    39,325.30/54,269.80 = 21,421.26/x
  3. Step 3: Cross multiply
    39,325.30x = 54,269.80 × 21,421.26
  4. Step 4: Simplify right side
    39,325.30x = 1,162,527,442.39
  5. Step 5: Solve for x
    x = 1,162,527,442.39/39,325.30
  6. Step 6: Final answer
    x = 29,561.82

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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.