Home / 30,061.52-45,083.16-10,328.72

Finding the Fourth Proportional to 30,061.52, 45,083.16 and 10,328.72

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Solution

The fourth proportional to 30,061.52, 45,083.16 and 10,328.72 is: 15,489.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,061.52 : 45,083.16 = 10,328.72 : x
  2. Step 2: Convert to fraction form
    30,061.52/45,083.16 = 10,328.72/x
  3. Step 3: Cross multiply
    30,061.52x = 45,083.16 × 10,328.72
  4. Step 4: Simplify right side
    30,061.52x = 465,651,336.36
  5. Step 5: Solve for x
    x = 465,651,336.36/30,061.52
  6. Step 6: Final answer
    x = 15,489.95

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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.