Home / 21,360.48-29,487.42-14,291.52

Finding the Fourth Proportional to 21,360.48, 29,487.42 and 14,291.52

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Solution

The fourth proportional to 21,360.48, 29,487.42 and 14,291.52 is: 19,728.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,360.48 : 29,487.42 = 14,291.52 : x
  2. Step 2: Convert to fraction form
    21,360.48/29,487.42 = 14,291.52/x
  3. Step 3: Cross multiply
    21,360.48x = 29,487.42 × 14,291.52
  4. Step 4: Simplify right side
    21,360.48x = 421,420,052.68
  5. Step 5: Solve for x
    x = 421,420,052.68/21,360.48
  6. Step 6: Final answer
    x = 19,728.96

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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.