Home / 30,113.29-45,176.54-12,344.06

Finding the Fourth Proportional to 30,113.29, 45,176.54 and 12,344.06

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Solution

The fourth proportional to 30,113.29, 45,176.54 and 12,344.06 is: 18,518.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,113.29 : 45,176.54 = 12,344.06 : x
  2. Step 2: Convert to fraction form
    30,113.29/45,176.54 = 12,344.06/x
  3. Step 3: Cross multiply
    30,113.29x = 45,176.54 × 12,344.06
  4. Step 4: Simplify right side
    30,113.29x = 557,661,971.57
  5. Step 5: Solve for x
    x = 557,661,971.57/30,113.29
  6. Step 6: Final answer
    x = 18,518.80

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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.