Home / 20,423.31-30,606.45-11,043.10

Finding the Fourth Proportional to 20,423.31, 30,606.45 and 11,043.10

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Solution

The fourth proportional to 20,423.31, 30,606.45 and 11,043.10 is: 16,549.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,423.31 : 30,606.45 = 11,043.10 : x
  2. Step 2: Convert to fraction form
    20,423.31/30,606.45 = 11,043.10/x
  3. Step 3: Cross multiply
    20,423.31x = 30,606.45 × 11,043.10
  4. Step 4: Simplify right side
    20,423.31x = 337,990,088.00
  5. Step 5: Solve for x
    x = 337,990,088.00/20,423.31
  6. Step 6: Final answer
    x = 16,549.23

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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.