Home / 39,221.15-54,125.52-21,316.15

Finding the Fourth Proportional to 39,221.15, 54,125.52 and 21,316.15

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Solution

The fourth proportional to 39,221.15, 54,125.52 and 21,316.15 is: 29,416.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,221.15 : 54,125.52 = 21,316.15 : x
  2. Step 2: Convert to fraction form
    39,221.15/54,125.52 = 21,316.15/x
  3. Step 3: Cross multiply
    39,221.15x = 54,125.52 × 21,316.15
  4. Step 4: Simplify right side
    39,221.15x = 1,153,747,703.15
  5. Step 5: Solve for x
    x = 1,153,747,703.15/39,221.15
  6. Step 6: Final answer
    x = 29,416.47

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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.