Home / 21,388.73-32,088.56-8,237.57

Finding the Fourth Proportional to 21,388.73, 32,088.56 and 8,237.57

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Solution

The fourth proportional to 21,388.73, 32,088.56 and 8,237.57 is: 12,358.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,388.73 : 32,088.56 = 8,237.57 : x
  2. Step 2: Convert to fraction form
    21,388.73/32,088.56 = 8,237.57/x
  3. Step 3: Cross multiply
    21,388.73x = 32,088.56 × 8,237.57
  4. Step 4: Simplify right side
    21,388.73x = 264,331,557.57
  5. Step 5: Solve for x
    x = 264,331,557.57/21,388.73
  6. Step 6: Final answer
    x = 12,358.45

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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.