Home / 30,487.02-42,149.07-22,516.62

Finding the Fourth Proportional to 30,487.02, 42,149.07 and 22,516.62

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Solution

The fourth proportional to 30,487.02, 42,149.07 and 22,516.62 is: 31,129.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,487.02 : 42,149.07 = 22,516.62 : x
  2. Step 2: Convert to fraction form
    30,487.02/42,149.07 = 22,516.62/x
  3. Step 3: Cross multiply
    30,487.02x = 42,149.07 × 22,516.62
  4. Step 4: Simplify right side
    30,487.02x = 949,054,592.54
  5. Step 5: Solve for x
    x = 949,054,592.54/30,487.02
  6. Step 6: Final answer
    x = 31,129.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.