Home / 35,881.20-53,815.23-13,689.72

Finding the Fourth Proportional to 35,881.20, 53,815.23 and 13,689.72

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Solution

The fourth proportional to 35,881.20, 53,815.23 and 13,689.72 is: 20,532.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,881.20 : 53,815.23 = 13,689.72 : x
  2. Step 2: Convert to fraction form
    35,881.20/53,815.23 = 13,689.72/x
  3. Step 3: Cross multiply
    35,881.20x = 53,815.23 × 13,689.72
  4. Step 4: Simplify right side
    35,881.20x = 736,715,430.44
  5. Step 5: Solve for x
    x = 736,715,430.44/35,881.20
  6. Step 6: Final answer
    x = 20,532.07

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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.