Home / 39,438.48-54,429.88-22,446.86

Finding the Fourth Proportional to 39,438.48, 54,429.88 and 22,446.86

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Solution

The fourth proportional to 39,438.48, 54,429.88 and 22,446.86 is: 30,979.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,438.48 : 54,429.88 = 22,446.86 : x
  2. Step 2: Convert to fraction form
    39,438.48/54,429.88 = 22,446.86/x
  3. Step 3: Cross multiply
    39,438.48x = 54,429.88 × 22,446.86
  4. Step 4: Simplify right side
    39,438.48x = 1,221,779,511.79
  5. Step 5: Solve for x
    x = 1,221,779,511.79/39,438.48
  6. Step 6: Final answer
    x = 30,979.38

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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.