Home / 28,541.57-39,373.97-18,986.13

Finding the Fourth Proportional to 28,541.57, 39,373.97 and 18,986.13

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Solution

The fourth proportional to 28,541.57, 39,373.97 and 18,986.13 is: 26,191.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,541.57 : 39,373.97 = 18,986.13 : x
  2. Step 2: Convert to fraction form
    28,541.57/39,373.97 = 18,986.13/x
  3. Step 3: Cross multiply
    28,541.57x = 39,373.97 × 18,986.13
  4. Step 4: Simplify right side
    28,541.57x = 747,559,218.11
  5. Step 5: Solve for x
    x = 747,559,218.11/28,541.57
  6. Step 6: Final answer
    x = 26,191.95

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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.