Home / 38,109.78-52,595.10-21,977.52

Finding the Fourth Proportional to 38,109.78, 52,595.10 and 21,977.52

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Solution

The fourth proportional to 38,109.78, 52,595.10 and 21,977.52 is: 30,331.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,109.78 : 52,595.10 = 21,977.52 : x
  2. Step 2: Convert to fraction form
    38,109.78/52,595.10 = 21,977.52/x
  3. Step 3: Cross multiply
    38,109.78x = 52,595.10 × 21,977.52
  4. Step 4: Simplify right side
    38,109.78x = 1,155,909,862.15
  5. Step 5: Solve for x
    x = 1,155,909,862.15/38,109.78
  6. Step 6: Final answer
    x = 30,331.06

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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.