Home / 40,988.80-61,490.20-18,804.07

Finding the Fourth Proportional to 40,988.80, 61,490.20 and 18,804.07

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Solution

The fourth proportional to 40,988.80, 61,490.20 and 18,804.07 is: 28,209.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,988.80 : 61,490.20 = 18,804.07 : x
  2. Step 2: Convert to fraction form
    40,988.80/61,490.20 = 18,804.07/x
  3. Step 3: Cross multiply
    40,988.80x = 61,490.20 × 18,804.07
  4. Step 4: Simplify right side
    40,988.80x = 1,156,266,289.61
  5. Step 5: Solve for x
    x = 1,156,266,289.61/40,988.80
  6. Step 6: Final answer
    x = 28,209.32

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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.