Home / 21,014.76-29,001.60-12,062.28

Finding the Fourth Proportional to 21,014.76, 29,001.60 and 12,062.28

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Solution

The fourth proportional to 21,014.76, 29,001.60 and 12,062.28 is: 16,646.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,014.76 : 29,001.60 = 12,062.28 : x
  2. Step 2: Convert to fraction form
    21,014.76/29,001.60 = 12,062.28/x
  3. Step 3: Cross multiply
    21,014.76x = 29,001.60 × 12,062.28
  4. Step 4: Simplify right side
    21,014.76x = 349,825,419.65
  5. Step 5: Solve for x
    x = 349,825,419.65/21,014.76
  6. Step 6: Final answer
    x = 16,646.65

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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.