Home / 28,661.10-42,991.65-16,851.30

Finding the Fourth Proportional to 28,661.10, 42,991.65 and 16,851.30

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Solution

The fourth proportional to 28,661.10, 42,991.65 and 16,851.30 is: 25,276.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,661.10 : 42,991.65 = 16,851.30 : x
  2. Step 2: Convert to fraction form
    28,661.10/42,991.65 = 16,851.30/x
  3. Step 3: Cross multiply
    28,661.10x = 42,991.65 × 16,851.30
  4. Step 4: Simplify right side
    28,661.10x = 724,465,191.65
  5. Step 5: Solve for x
    x = 724,465,191.65/28,661.10
  6. Step 6: Final answer
    x = 25,276.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.