Home / 31,028.08-42,818.50-16,880.93

Finding the Fourth Proportional to 31,028.08, 42,818.50 and 16,880.93

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Solution

The fourth proportional to 31,028.08, 42,818.50 and 16,880.93 is: 23,295.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,028.08 : 42,818.50 = 16,880.93 : x
  2. Step 2: Convert to fraction form
    31,028.08/42,818.50 = 16,880.93/x
  3. Step 3: Cross multiply
    31,028.08x = 42,818.50 × 16,880.93
  4. Step 4: Simplify right side
    31,028.08x = 722,816,101.21
  5. Step 5: Solve for x
    x = 722,816,101.21/31,028.08
  6. Step 6: Final answer
    x = 23,295.55

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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.