Home / 29,521.78-40,717.02-18,912.40

Finding the Fourth Proportional to 29,521.78, 40,717.02 and 18,912.40

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Solution

The fourth proportional to 29,521.78, 40,717.02 and 18,912.40 is: 26,084.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,521.78 : 40,717.02 = 18,912.40 : x
  2. Step 2: Convert to fraction form
    29,521.78/40,717.02 = 18,912.40/x
  3. Step 3: Cross multiply
    29,521.78x = 40,717.02 × 18,912.40
  4. Step 4: Simplify right side
    29,521.78x = 770,056,569.05
  5. Step 5: Solve for x
    x = 770,056,569.05/29,521.78
  6. Step 6: Final answer
    x = 26,084.35

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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.