Home / 21,044.91-31,537.29-15,454.40

Finding the Fourth Proportional to 21,044.91, 31,537.29 and 15,454.40

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Solution

The fourth proportional to 21,044.91, 31,537.29 and 15,454.40 is: 23,159.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,044.91 : 31,537.29 = 15,454.40 : x
  2. Step 2: Convert to fraction form
    21,044.91/31,537.29 = 15,454.40/x
  3. Step 3: Cross multiply
    21,044.91x = 31,537.29 × 15,454.40
  4. Step 4: Simplify right side
    21,044.91x = 487,389,736.89
  5. Step 5: Solve for x
    x = 487,389,736.89/21,044.91
  6. Step 6: Final answer
    x = 23,159.51

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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.