Home / 20,320.02-30,445.14-18,265.68

Finding the Fourth Proportional to 20,320.02, 30,445.14 and 18,265.68

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Solution

The fourth proportional to 20,320.02, 30,445.14 and 18,265.68 is: 27,367.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,320.02 : 30,445.14 = 18,265.68 : x
  2. Step 2: Convert to fraction form
    20,320.02/30,445.14 = 18,265.68/x
  3. Step 3: Cross multiply
    20,320.02x = 30,445.14 × 18,265.68
  4. Step 4: Simplify right side
    20,320.02x = 556,101,184.80
  5. Step 5: Solve for x
    x = 556,101,184.80/20,320.02
  6. Step 6: Final answer
    x = 27,367.16

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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.