Home / 40,890.20-61,306.59-15,909.20

Finding the Fourth Proportional to 40,890.20, 61,306.59 and 15,909.20

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Solution

The fourth proportional to 40,890.20, 61,306.59 and 15,909.20 is: 23,852.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,890.20 : 61,306.59 = 15,909.20 : x
  2. Step 2: Convert to fraction form
    40,890.20/61,306.59 = 15,909.20/x
  3. Step 3: Cross multiply
    40,890.20x = 61,306.59 × 15,909.20
  4. Step 4: Simplify right side
    40,890.20x = 975,338,495.10
  5. Step 5: Solve for x
    x = 975,338,495.10/40,890.20
  6. Step 6: Final answer
    x = 23,852.63

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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.