Home / 45,023.22-67,538.18-13,430.79

Finding the Fourth Proportional to 45,023.22, 67,538.18 and 13,430.79

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Solution

The fourth proportional to 45,023.22, 67,538.18 and 13,430.79 is: 20,147.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,023.22 : 67,538.18 = 13,430.79 : x
  2. Step 2: Convert to fraction form
    45,023.22/67,538.18 = 13,430.79/x
  3. Step 3: Cross multiply
    45,023.22x = 67,538.18 × 13,430.79
  4. Step 4: Simplify right side
    45,023.22x = 907,091,146.14
  5. Step 5: Solve for x
    x = 907,091,146.14/45,023.22
  6. Step 6: Final answer
    x = 20,147.19

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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.