Home / 23,179.73-31,987.85-12,569.28

Finding the Fourth Proportional to 23,179.73, 31,987.85 and 12,569.28

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Solution

The fourth proportional to 23,179.73, 31,987.85 and 12,569.28 is: 17,345.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,179.73 : 31,987.85 = 12,569.28 : x
  2. Step 2: Convert to fraction form
    23,179.73/31,987.85 = 12,569.28/x
  3. Step 3: Cross multiply
    23,179.73x = 31,987.85 × 12,569.28
  4. Step 4: Simplify right side
    23,179.73x = 402,064,180.40
  5. Step 5: Solve for x
    x = 402,064,180.40/23,179.73
  6. Step 6: Final answer
    x = 17,345.51

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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.