Home / 30,990.56-42,766.12-17,566.16

Finding the Fourth Proportional to 30,990.56, 42,766.12 and 17,566.16

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Solution

The fourth proportional to 30,990.56, 42,766.12 and 17,566.16 is: 24,240.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,990.56 : 42,766.12 = 17,566.16 : x
  2. Step 2: Convert to fraction form
    30,990.56/42,766.12 = 17,566.16/x
  3. Step 3: Cross multiply
    30,990.56x = 42,766.12 × 17,566.16
  4. Step 4: Simplify right side
    30,990.56x = 751,236,506.50
  5. Step 5: Solve for x
    x = 751,236,506.50/30,990.56
  6. Step 6: Final answer
    x = 24,240.82

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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.