Home / 39,221.24-54,124.98-21,316.35

Finding the Fourth Proportional to 39,221.24, 54,124.98 and 21,316.35

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Solution

The fourth proportional to 39,221.24, 54,124.98 and 21,316.35 is: 29,416.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,221.24 : 54,124.98 = 21,316.35 : x
  2. Step 2: Convert to fraction form
    39,221.24/54,124.98 = 21,316.35/x
  3. Step 3: Cross multiply
    39,221.24x = 54,124.98 × 21,316.35
  4. Step 4: Simplify right side
    39,221.24x = 1,153,747,244.20
  5. Step 5: Solve for x
    x = 1,153,747,244.20/39,221.24
  6. Step 6: Final answer
    x = 29,416.39

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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.