Home / 30,588.03-42,213.15-23,020.74

Finding the Fourth Proportional to 30,588.03, 42,213.15 and 23,020.74

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Solution

The fourth proportional to 30,588.03, 42,213.15 and 23,020.74 is: 31,769.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,588.03 : 42,213.15 = 23,020.74 : x
  2. Step 2: Convert to fraction form
    30,588.03/42,213.15 = 23,020.74/x
  3. Step 3: Cross multiply
    30,588.03x = 42,213.15 × 23,020.74
  4. Step 4: Simplify right side
    30,588.03x = 971,777,950.73
  5. Step 5: Solve for x
    x = 971,777,950.73/30,588.03
  6. Step 6: Final answer
    x = 31,769.88

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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.