Home / 21,269.75-31,902.19-5,688.59

Finding the Fourth Proportional to 21,269.75, 31,902.19 and 5,688.59

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Solution

The fourth proportional to 21,269.75, 31,902.19 and 5,688.59 is: 8,532.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,269.75 : 31,902.19 = 5,688.59 : x
  2. Step 2: Convert to fraction form
    21,269.75/31,902.19 = 5,688.59/x
  3. Step 3: Cross multiply
    21,269.75x = 31,902.19 × 5,688.59
  4. Step 4: Simplify right side
    21,269.75x = 181,478,479.01
  5. Step 5: Solve for x
    x = 181,478,479.01/21,269.75
  6. Step 6: Final answer
    x = 8,532.23

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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.