Home / 39,429.76-54,396.16-22,659.20

Finding the Fourth Proportional to 39,429.76, 54,396.16 and 22,659.20

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Solution

The fourth proportional to 39,429.76, 54,396.16 and 22,659.20 is: 31,259.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,429.76 : 54,396.16 = 22,659.20 : x
  2. Step 2: Convert to fraction form
    39,429.76/54,396.16 = 22,659.20/x
  3. Step 3: Cross multiply
    39,429.76x = 54,396.16 × 22,659.20
  4. Step 4: Simplify right side
    39,429.76x = 1,232,573,468.67
  5. Step 5: Solve for x
    x = 1,232,573,468.67/39,429.76
  6. Step 6: Final answer
    x = 31,259.98

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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.