Home / 21,547.52-29,752.80-13,997.60

Finding the Fourth Proportional to 21,547.52, 29,752.80 and 13,997.60

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Solution

The fourth proportional to 21,547.52, 29,752.80 and 13,997.60 is: 19,327.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,547.52 : 29,752.80 = 13,997.60 : x
  2. Step 2: Convert to fraction form
    21,547.52/29,752.80 = 13,997.60/x
  3. Step 3: Cross multiply
    21,547.52x = 29,752.80 × 13,997.60
  4. Step 4: Simplify right side
    21,547.52x = 416,467,793.28
  5. Step 5: Solve for x
    x = 416,467,793.28/21,547.52
  6. Step 6: Final answer
    x = 19,327.88

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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.