Home / 38,487.40-57,750.30-21,860.20

Finding the Fourth Proportional to 38,487.40, 57,750.30 and 21,860.20

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Solution

The fourth proportional to 38,487.40, 57,750.30 and 21,860.20 is: 32,801.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,487.40 : 57,750.30 = 21,860.20 : x
  2. Step 2: Convert to fraction form
    38,487.40/57,750.30 = 21,860.20/x
  3. Step 3: Cross multiply
    38,487.40x = 57,750.30 × 21,860.20
  4. Step 4: Simplify right side
    38,487.40x = 1,262,433,108.06
  5. Step 5: Solve for x
    x = 1,262,433,108.06/38,487.40
  6. Step 6: Final answer
    x = 32,801.21

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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.