Home / 21,519.06-29,693.54-12,560.08

Finding the Fourth Proportional to 21,519.06, 29,693.54 and 12,560.08

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Solution

The fourth proportional to 21,519.06, 29,693.54 and 12,560.08 is: 17,331.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,519.06 : 29,693.54 = 12,560.08 : x
  2. Step 2: Convert to fraction form
    21,519.06/29,693.54 = 12,560.08/x
  3. Step 3: Cross multiply
    21,519.06x = 29,693.54 × 12,560.08
  4. Step 4: Simplify right side
    21,519.06x = 372,953,237.88
  5. Step 5: Solve for x
    x = 372,953,237.88/21,519.06
  6. Step 6: Final answer
    x = 17,331.30

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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.