Home / 21,560.43-29,743.56-15,582.63

Finding the Fourth Proportional to 21,560.43, 29,743.56 and 15,582.63

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Solution

The fourth proportional to 21,560.43, 29,743.56 and 15,582.63 is: 21,496.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,560.43 : 29,743.56 = 15,582.63 : x
  2. Step 2: Convert to fraction form
    21,560.43/29,743.56 = 15,582.63/x
  3. Step 3: Cross multiply
    21,560.43x = 29,743.56 × 15,582.63
  4. Step 4: Simplify right side
    21,560.43x = 463,482,890.36
  5. Step 5: Solve for x
    x = 463,482,890.36/21,560.43
  6. Step 6: Final answer
    x = 21,496.92

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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.