Home / 28,988.20-43,535.10-25,359.40

Finding the Fourth Proportional to 28,988.20, 43,535.10 and 25,359.40

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Solution

The fourth proportional to 28,988.20, 43,535.10 and 25,359.40 is: 38,085.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,988.20 : 43,535.10 = 25,359.40 : x
  2. Step 2: Convert to fraction form
    28,988.20/43,535.10 = 25,359.40/x
  3. Step 3: Cross multiply
    28,988.20x = 43,535.10 × 25,359.40
  4. Step 4: Simplify right side
    28,988.20x = 1,104,024,014.94
  5. Step 5: Solve for x
    x = 1,104,024,014.94/28,988.20
  6. Step 6: Final answer
    x = 38,085.29

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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.