Home / 28,023.36-42,062.40-23,142.72

Finding the Fourth Proportional to 28,023.36, 42,062.40 and 23,142.72

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Solution

The fourth proportional to 28,023.36, 42,062.40 and 23,142.72 is: 34,736.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,023.36 : 42,062.40 = 23,142.72 : x
  2. Step 2: Convert to fraction form
    28,023.36/42,062.40 = 23,142.72/x
  3. Step 3: Cross multiply
    28,023.36x = 42,062.40 × 23,142.72
  4. Step 4: Simplify right side
    28,023.36x = 973,438,345.73
  5. Step 5: Solve for x
    x = 973,438,345.73/28,023.36
  6. Step 6: Final answer
    x = 34,736.67

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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.