Home / 31,070.27-42,877.80-16,924.02

Finding the Fourth Proportional to 31,070.27, 42,877.80 and 16,924.02

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Solution

The fourth proportional to 31,070.27, 42,877.80 and 16,924.02 is: 23,355.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,070.27 : 42,877.80 = 16,924.02 : x
  2. Step 2: Convert to fraction form
    31,070.27/42,877.80 = 16,924.02/x
  3. Step 3: Cross multiply
    31,070.27x = 42,877.80 × 16,924.02
  4. Step 4: Simplify right side
    31,070.27x = 725,664,744.76
  5. Step 5: Solve for x
    x = 725,664,744.76/31,070.27
  6. Step 6: Final answer
    x = 23,355.60

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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.