Home / 30,158.32-45,240.98-11,452.36

Finding the Fourth Proportional to 30,158.32, 45,240.98 and 11,452.36

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Solution

The fourth proportional to 30,158.32, 45,240.98 and 11,452.36 is: 17,179.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,158.32 : 45,240.98 = 11,452.36 : x
  2. Step 2: Convert to fraction form
    30,158.32/45,240.98 = 11,452.36/x
  3. Step 3: Cross multiply
    30,158.32x = 45,240.98 × 11,452.36
  4. Step 4: Simplify right side
    30,158.32x = 518,115,989.71
  5. Step 5: Solve for x
    x = 518,115,989.71/30,158.32
  6. Step 6: Final answer
    x = 17,179.87

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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.