Home / 21,765.18-32,632.36-11,230.72

Finding the Fourth Proportional to 21,765.18, 32,632.36 and 11,230.72

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Solution

The fourth proportional to 21,765.18, 32,632.36 and 11,230.72 is: 16,838.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,765.18 : 32,632.36 = 11,230.72 : x
  2. Step 2: Convert to fraction form
    21,765.18/32,632.36 = 11,230.72/x
  3. Step 3: Cross multiply
    21,765.18x = 32,632.36 × 11,230.72
  4. Step 4: Simplify right side
    21,765.18x = 366,484,898.10
  5. Step 5: Solve for x
    x = 366,484,898.10/21,765.18
  6. Step 6: Final answer
    x = 16,838.13

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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.