Home / 28,081.86-42,122.76-7,305.36

Finding the Fourth Proportional to 28,081.86, 42,122.76 and 7,305.36

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Solution

The fourth proportional to 28,081.86, 42,122.76 and 7,305.36 is: 10,958.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,081.86 : 42,122.76 = 7,305.36 : x
  2. Step 2: Convert to fraction form
    28,081.86/42,122.76 = 7,305.36/x
  3. Step 3: Cross multiply
    28,081.86x = 42,122.76 × 7,305.36
  4. Step 4: Simplify right side
    28,081.86x = 307,721,925.99
  5. Step 5: Solve for x
    x = 307,721,925.99/28,081.86
  6. Step 6: Final answer
    x = 10,958.03

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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.