Home / 38,331.90-52,897.98-21,564.90

Finding the Fourth Proportional to 38,331.90, 52,897.98 and 21,564.90

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Solution

The fourth proportional to 38,331.90, 52,897.98 and 21,564.90 is: 29,759.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,331.90 : 52,897.98 = 21,564.90 : x
  2. Step 2: Convert to fraction form
    38,331.90/52,897.98 = 21,564.90/x
  3. Step 3: Cross multiply
    38,331.90x = 52,897.98 × 21,564.90
  4. Step 4: Simplify right side
    38,331.90x = 1,140,739,648.90
  5. Step 5: Solve for x
    x = 1,140,739,648.90/38,331.90
  6. Step 6: Final answer
    x = 29,759.54

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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.