Home / 39,220.20-58,830.30-21,724.20

Finding the Fourth Proportional to 39,220.20, 58,830.30 and 21,724.20

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Solution

The fourth proportional to 39,220.20, 58,830.30 and 21,724.20 is: 32,586.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,220.20 : 58,830.30 = 21,724.20 : x
  2. Step 2: Convert to fraction form
    39,220.20/58,830.30 = 21,724.20/x
  3. Step 3: Cross multiply
    39,220.20x = 58,830.30 × 21,724.20
  4. Step 4: Simplify right side
    39,220.20x = 1,278,041,203.26
  5. Step 5: Solve for x
    x = 1,278,041,203.26/39,220.20
  6. Step 6: Final answer
    x = 32,586.30

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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.