Home / 38,528.80-57,801.30-21,875.20

Finding the Fourth Proportional to 38,528.80, 57,801.30 and 21,875.20

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Solution

The fourth proportional to 38,528.80, 57,801.30 and 21,875.20 is: 32,817.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,528.80 : 57,801.30 = 21,875.20 : x
  2. Step 2: Convert to fraction form
    38,528.80/57,801.30 = 21,875.20/x
  3. Step 3: Cross multiply
    38,528.80x = 57,801.30 × 21,875.20
  4. Step 4: Simplify right side
    38,528.80x = 1,264,414,997.76
  5. Step 5: Solve for x
    x = 1,264,414,997.76/38,528.80
  6. Step 6: Final answer
    x = 32,817.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.