Home / 20,449.39-30,655.50-7,298.69

Finding the Fourth Proportional to 20,449.39, 30,655.50 and 7,298.69

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Solution

The fourth proportional to 20,449.39, 30,655.50 and 7,298.69 is: 10,941.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,449.39 : 30,655.50 = 7,298.69 : x
  2. Step 2: Convert to fraction form
    20,449.39/30,655.50 = 7,298.69/x
  3. Step 3: Cross multiply
    20,449.39x = 30,655.50 × 7,298.69
  4. Step 4: Simplify right side
    20,449.39x = 223,744,875.31
  5. Step 5: Solve for x
    x = 223,744,875.31/20,449.39
  6. Step 6: Final answer
    x = 10,941.40

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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.