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Finding the Fourth Proportional to 30,007.80, 44,999.55 and 10,276.20

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Solution

The fourth proportional to 30,007.80, 44,999.55 and 10,276.20 is: 15,410.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,007.80 : 44,999.55 = 10,276.20 : x
  2. Step 2: Convert to fraction form
    30,007.80/44,999.55 = 10,276.20/x
  3. Step 3: Cross multiply
    30,007.80x = 44,999.55 × 10,276.20
  4. Step 4: Simplify right side
    30,007.80x = 462,424,375.71
  5. Step 5: Solve for x
    x = 462,424,375.71/30,007.80
  6. Step 6: Final answer
    x = 15,410.14

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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.