Home / 21,024.64-29,039.84-15,743.04

Finding the Fourth Proportional to 21,024.64, 29,039.84 and 15,743.04

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Solution

The fourth proportional to 21,024.64, 29,039.84 and 15,743.04 is: 21,744.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,024.64 : 29,039.84 = 15,743.04 : x
  2. Step 2: Convert to fraction form
    21,024.64/29,039.84 = 15,743.04/x
  3. Step 3: Cross multiply
    21,024.64x = 29,039.84 × 15,743.04
  4. Step 4: Simplify right side
    21,024.64x = 457,175,362.71
  5. Step 5: Solve for x
    x = 457,175,362.71/21,024.64
  6. Step 6: Final answer
    x = 21,744.74

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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.