Home / 19,304.18-28,960.53-10,988.12

Finding the Fourth Proportional to 19,304.18, 28,960.53 and 10,988.12

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Solution

The fourth proportional to 19,304.18, 28,960.53 and 10,988.12 is: 16,484.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,304.18 : 28,960.53 = 10,988.12 : x
  2. Step 2: Convert to fraction form
    19,304.18/28,960.53 = 10,988.12/x
  3. Step 3: Cross multiply
    19,304.18x = 28,960.53 × 10,988.12
  4. Step 4: Simplify right side
    19,304.18x = 318,221,778.90
  5. Step 5: Solve for x
    x = 318,221,778.90/19,304.18
  6. Step 6: Final answer
    x = 16,484.60

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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.