Home / 31,070.02-42,877.09-16,922.85

Finding the Fourth Proportional to 31,070.02, 42,877.09 and 16,922.85

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Solution

The fourth proportional to 31,070.02, 42,877.09 and 16,922.85 is: 23,353.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,070.02 : 42,877.09 = 16,922.85 : x
  2. Step 2: Convert to fraction form
    31,070.02/42,877.09 = 16,922.85/x
  3. Step 3: Cross multiply
    31,070.02x = 42,877.09 × 16,922.85
  4. Step 4: Simplify right side
    31,070.02x = 725,602,348.12
  5. Step 5: Solve for x
    x = 725,602,348.12/31,070.02
  6. Step 6: Final answer
    x = 23,353.78

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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.