Home / 30,233.80-45,329.10-13,580.20

Finding the Fourth Proportional to 30,233.80, 45,329.10 and 13,580.20

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Solution

The fourth proportional to 30,233.80, 45,329.10 and 13,580.20 is: 20,360.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,233.80 : 45,329.10 = 13,580.20 : x
  2. Step 2: Convert to fraction form
    30,233.80/45,329.10 = 13,580.20/x
  3. Step 3: Cross multiply
    30,233.80x = 45,329.10 × 13,580.20
  4. Step 4: Simplify right side
    30,233.80x = 615,578,243.82
  5. Step 5: Solve for x
    x = 615,578,243.82/30,233.80
  6. Step 6: Final answer
    x = 20,360.60

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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.