Home / 31,006.08-42,787.80-16,858.80

Finding the Fourth Proportional to 31,006.08, 42,787.80 and 16,858.80

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Solution

The fourth proportional to 31,006.08, 42,787.80 and 16,858.80 is: 23,264.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,006.08 : 42,787.80 = 16,858.80 : x
  2. Step 2: Convert to fraction form
    31,006.08/42,787.80 = 16,858.80/x
  3. Step 3: Cross multiply
    31,006.08x = 42,787.80 × 16,858.80
  4. Step 4: Simplify right side
    31,006.08x = 721,350,962.64
  5. Step 5: Solve for x
    x = 721,350,962.64/31,006.08
  6. Step 6: Final answer
    x = 23,264.82

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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.