Home / 30,882.13-46,312.80-12,157.26

Finding the Fourth Proportional to 30,882.13, 46,312.80 and 12,157.26

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Solution

The fourth proportional to 30,882.13, 46,312.80 and 12,157.26 is: 18,231.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,882.13 : 46,312.80 = 12,157.26 : x
  2. Step 2: Convert to fraction form
    30,882.13/46,312.80 = 12,157.26/x
  3. Step 3: Cross multiply
    30,882.13x = 46,312.80 × 12,157.26
  4. Step 4: Simplify right side
    30,882.13x = 563,036,531.67
  5. Step 5: Solve for x
    x = 563,036,531.67/30,882.13
  6. Step 6: Final answer
    x = 18,231.79

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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.