Home / 21,304.74-29,401.35-11,873.91

Finding the Fourth Proportional to 21,304.74, 29,401.35 and 11,873.91

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Solution

The fourth proportional to 21,304.74, 29,401.35 and 11,873.91 is: 16,386.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,304.74 : 29,401.35 = 11,873.91 : x
  2. Step 2: Convert to fraction form
    21,304.74/29,401.35 = 11,873.91/x
  3. Step 3: Cross multiply
    21,304.74x = 29,401.35 × 11,873.91
  4. Step 4: Simplify right side
    21,304.74x = 349,108,983.78
  5. Step 5: Solve for x
    x = 349,108,983.78/21,304.74
  6. Step 6: Final answer
    x = 16,386.45

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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.