Home / 21,169.59-31,747.90-14,637.75

Finding the Fourth Proportional to 21,169.59, 31,747.90 and 14,637.75

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Solution

The fourth proportional to 21,169.59, 31,747.90 and 14,637.75 is: 21,952.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,169.59 : 31,747.90 = 14,637.75 : x
  2. Step 2: Convert to fraction form
    21,169.59/31,747.90 = 14,637.75/x
  3. Step 3: Cross multiply
    21,169.59x = 31,747.90 × 14,637.75
  4. Step 4: Simplify right side
    21,169.59x = 464,717,823.23
  5. Step 5: Solve for x
    x = 464,717,823.23/21,169.59
  6. Step 6: Final answer
    x = 21,952.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.