Home / 30,881.70-42,613.29-22,500.90

Finding the Fourth Proportional to 30,881.70, 42,613.29 and 22,500.90

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Solution

The fourth proportional to 30,881.70, 42,613.29 and 22,500.90 is: 31,048.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,881.70 : 42,613.29 = 22,500.90 : x
  2. Step 2: Convert to fraction form
    30,881.70/42,613.29 = 22,500.90/x
  3. Step 3: Cross multiply
    30,881.70x = 42,613.29 × 22,500.90
  4. Step 4: Simplify right side
    30,881.70x = 958,837,376.96
  5. Step 5: Solve for x
    x = 958,837,376.96/30,881.70
  6. Step 6: Final answer
    x = 31,048.72

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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.