Home / 38,805.80-58,209.05-15,438.20

Finding the Fourth Proportional to 38,805.80, 58,209.05 and 15,438.20

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Solution

The fourth proportional to 38,805.80, 58,209.05 and 15,438.20 is: 23,157.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,805.80 : 58,209.05 = 15,438.20 : x
  2. Step 2: Convert to fraction form
    38,805.80/58,209.05 = 15,438.20/x
  3. Step 3: Cross multiply
    38,805.80x = 58,209.05 × 15,438.20
  4. Step 4: Simplify right side
    38,805.80x = 898,642,703.26
  5. Step 5: Solve for x
    x = 898,642,703.26/38,805.80
  6. Step 6: Final answer
    x = 23,157.44

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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.