Home / 31,070.40-42,877.36-16,923.12

Finding the Fourth Proportional to 31,070.40, 42,877.36 and 16,923.12

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Solution

The fourth proportional to 31,070.40, 42,877.36 and 16,923.12 is: 23,354.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,070.40 : 42,877.36 = 16,923.12 : x
  2. Step 2: Convert to fraction form
    31,070.40/42,877.36 = 16,923.12/x
  3. Step 3: Cross multiply
    31,070.40x = 42,877.36 × 16,923.12
  4. Step 4: Simplify right side
    31,070.40x = 725,618,708.56
  5. Step 5: Solve for x
    x = 725,618,708.56/31,070.40
  6. Step 6: Final answer
    x = 23,354.02

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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.