Home / 21,034.74-29,015.06-13,478.52

Finding the Fourth Proportional to 21,034.74, 29,015.06 and 13,478.52

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Solution

The fourth proportional to 21,034.74, 29,015.06 and 13,478.52 is: 18,592.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,034.74 : 29,015.06 = 13,478.52 : x
  2. Step 2: Convert to fraction form
    21,034.74/29,015.06 = 13,478.52/x
  3. Step 3: Cross multiply
    21,034.74x = 29,015.06 × 13,478.52
  4. Step 4: Simplify right side
    21,034.74x = 391,080,066.51
  5. Step 5: Solve for x
    x = 391,080,066.51/21,034.74
  6. Step 6: Final answer
    x = 18,592.10

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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.