Home / 20,045.07-30,071.05-8,951.51

Finding the Fourth Proportional to 20,045.07, 30,071.05 and 8,951.51

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Solution

The fourth proportional to 20,045.07, 30,071.05 and 8,951.51 is: 13,428.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,045.07 : 30,071.05 = 8,951.51 : x
  2. Step 2: Convert to fraction form
    20,045.07/30,071.05 = 8,951.51/x
  3. Step 3: Cross multiply
    20,045.07x = 30,071.05 × 8,951.51
  4. Step 4: Simplify right side
    20,045.07x = 269,181,357.58
  5. Step 5: Solve for x
    x = 269,181,357.58/20,045.07
  6. Step 6: Final answer
    x = 13,428.81

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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.