Home / 30,211.28-45,332.26-13,567.90

Finding the Fourth Proportional to 30,211.28, 45,332.26 and 13,567.90

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Solution

The fourth proportional to 30,211.28, 45,332.26 and 13,567.90 is: 20,358.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,211.28 : 45,332.26 = 13,567.90 : x
  2. Step 2: Convert to fraction form
    30,211.28/45,332.26 = 13,567.90/x
  3. Step 3: Cross multiply
    30,211.28x = 45,332.26 × 13,567.90
  4. Step 4: Simplify right side
    30,211.28x = 615,063,570.45
  5. Step 5: Solve for x
    x = 615,063,570.45/30,211.28
  6. Step 6: Final answer
    x = 20,358.74

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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.