Home / 30,570.85-42,168.35-22,085.44

Finding the Fourth Proportional to 30,570.85, 42,168.35 and 22,085.44

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Solution

The fourth proportional to 30,570.85, 42,168.35 and 22,085.44 is: 30,463.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,570.85 : 42,168.35 = 22,085.44 : x
  2. Step 2: Convert to fraction form
    30,570.85/42,168.35 = 22,085.44/x
  3. Step 3: Cross multiply
    30,570.85x = 42,168.35 × 22,085.44
  4. Step 4: Simplify right side
    30,570.85x = 931,306,626.58
  5. Step 5: Solve for x
    x = 931,306,626.58/30,570.85
  6. Step 6: Final answer
    x = 30,463.88

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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.