Home / 21,665.18-32,423.84-18,159.16

Finding the Fourth Proportional to 21,665.18, 32,423.84 and 18,159.16

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Solution

The fourth proportional to 21,665.18, 32,423.84 and 18,159.16 is: 27,176.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,665.18 : 32,423.84 = 18,159.16 : x
  2. Step 2: Convert to fraction form
    21,665.18/32,423.84 = 18,159.16/x
  3. Step 3: Cross multiply
    21,665.18x = 32,423.84 × 18,159.16
  4. Step 4: Simplify right side
    21,665.18x = 588,789,698.37
  5. Step 5: Solve for x
    x = 588,789,698.37/21,665.18
  6. Step 6: Final answer
    x = 27,176.77

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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.