Home / 30,100.76-45,154.11-10,376.72

Finding the Fourth Proportional to 30,100.76, 45,154.11 and 10,376.72

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Solution

The fourth proportional to 30,100.76, 45,154.11 and 10,376.72 is: 15,566.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,100.76 : 45,154.11 = 10,376.72 : x
  2. Step 2: Convert to fraction form
    30,100.76/45,154.11 = 10,376.72/x
  3. Step 3: Cross multiply
    30,100.76x = 45,154.11 × 10,376.72
  4. Step 4: Simplify right side
    30,100.76x = 468,551,556.32
  5. Step 5: Solve for x
    x = 468,551,556.32/30,100.76
  6. Step 6: Final answer
    x = 15,566.10

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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.