Home / 38,331.93-57,421.35-30,447.80

Finding the Fourth Proportional to 38,331.93, 57,421.35 and 30,447.80

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Solution

The fourth proportional to 38,331.93, 57,421.35 and 30,447.80 is: 45,610.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,331.93 : 57,421.35 = 30,447.80 : x
  2. Step 2: Convert to fraction form
    38,331.93/57,421.35 = 30,447.80/x
  3. Step 3: Cross multiply
    38,331.93x = 57,421.35 × 30,447.80
  4. Step 4: Simplify right side
    38,331.93x = 1,748,353,341.18
  5. Step 5: Solve for x
    x = 1,748,353,341.18/38,331.93
  6. Step 6: Final answer
    x = 45,610.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.