Home / 30,666.92-45,961.90-13,116.12

Finding the Fourth Proportional to 30,666.92, 45,961.90 and 13,116.12

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Solution

The fourth proportional to 30,666.92, 45,961.90 and 13,116.12 is: 19,657.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,666.92 : 45,961.90 = 13,116.12 : x
  2. Step 2: Convert to fraction form
    30,666.92/45,961.90 = 13,116.12/x
  3. Step 3: Cross multiply
    30,666.92x = 45,961.90 × 13,116.12
  4. Step 4: Simplify right side
    30,666.92x = 602,841,795.83
  5. Step 5: Solve for x
    x = 602,841,795.83/30,666.92
  6. Step 6: Final answer
    x = 19,657.72

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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.