Home / 15,521.20-23,281.80-9,300.40

Finding the Fourth Proportional to 15,521.20, 23,281.80 and 9,300.40

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Solution

The fourth proportional to 15,521.20, 23,281.80 and 9,300.40 is: 13,950.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,521.20 : 23,281.80 = 9,300.40 : x
  2. Step 2: Convert to fraction form
    15,521.20/23,281.80 = 9,300.40/x
  3. Step 3: Cross multiply
    15,521.20x = 23,281.80 × 9,300.40
  4. Step 4: Simplify right side
    15,521.20x = 216,530,052.72
  5. Step 5: Solve for x
    x = 216,530,052.72/15,521.20
  6. Step 6: Final answer
    x = 13,950.60

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Similar ratio
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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.