Home / 23,180.16-31,988.52-12,569.76

Finding the Fourth Proportional to 23,180.16, 31,988.52 and 12,569.76

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Solution

The fourth proportional to 23,180.16, 31,988.52 and 12,569.76 is: 17,346.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,180.16 : 31,988.52 = 12,569.76 : x
  2. Step 2: Convert to fraction form
    23,180.16/31,988.52 = 12,569.76/x
  3. Step 3: Cross multiply
    23,180.16x = 31,988.52 × 12,569.76
  4. Step 4: Simplify right side
    23,180.16x = 402,088,019.16
  5. Step 5: Solve for x
    x = 402,088,019.16/23,180.16
  6. Step 6: Final answer
    x = 17,346.21

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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.