Home / 30,158.95-45,231.53-11,441.06

Finding the Fourth Proportional to 30,158.95, 45,231.53 and 11,441.06

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Solution

The fourth proportional to 30,158.95, 45,231.53 and 11,441.06 is: 17,158.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,158.95 : 45,231.53 = 11,441.06 : x
  2. Step 2: Convert to fraction form
    30,158.95/45,231.53 = 11,441.06/x
  3. Step 3: Cross multiply
    30,158.95x = 45,231.53 × 11,441.06
  4. Step 4: Simplify right side
    30,158.95x = 517,496,648.62
  5. Step 5: Solve for x
    x = 517,496,648.62/30,158.95
  6. Step 6: Final answer
    x = 17,158.98

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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.