Home / 30,711.52-46,065.12-11,988.04

Finding the Fourth Proportional to 30,711.52, 46,065.12 and 11,988.04

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Solution

The fourth proportional to 30,711.52, 46,065.12 and 11,988.04 is: 17,981.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,711.52 : 46,065.12 = 11,988.04 : x
  2. Step 2: Convert to fraction form
    30,711.52/46,065.12 = 11,988.04/x
  3. Step 3: Cross multiply
    30,711.52x = 46,065.12 × 11,988.04
  4. Step 4: Simplify right side
    30,711.52x = 552,230,501.16
  5. Step 5: Solve for x
    x = 552,230,501.16/30,711.52
  6. Step 6: Final answer
    x = 17,981.22

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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.