Home / 18,478.90-27,722.40-10,573.30

Finding the Fourth Proportional to 18,478.90, 27,722.40 and 10,573.30

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Solution

The fourth proportional to 18,478.90, 27,722.40 and 10,573.30 is: 15,862.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,478.90 : 27,722.40 = 10,573.30 : x
  2. Step 2: Convert to fraction form
    18,478.90/27,722.40 = 10,573.30/x
  3. Step 3: Cross multiply
    18,478.90x = 27,722.40 × 10,573.30
  4. Step 4: Simplify right side
    18,478.90x = 293,117,251.92
  5. Step 5: Solve for x
    x = 293,117,251.92/18,478.90
  6. Step 6: Final answer
    x = 15,862.27

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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.