Home / 30,234.55-45,336.27-13,580.29

Finding the Fourth Proportional to 30,234.55, 45,336.27 and 13,580.29

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Solution

The fourth proportional to 30,234.55, 45,336.27 and 13,580.29 is: 20,363.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,234.55 : 45,336.27 = 13,580.29 : x
  2. Step 2: Convert to fraction form
    30,234.55/45,336.27 = 13,580.29/x
  3. Step 3: Cross multiply
    30,234.55x = 45,336.27 × 13,580.29
  4. Step 4: Simplify right side
    30,234.55x = 615,679,580.78
  5. Step 5: Solve for x
    x = 615,679,580.78/30,234.55
  6. Step 6: Final answer
    x = 20,363.45

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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.