Home / 21,625.79-32,442.60-9,785.13

Finding the Fourth Proportional to 21,625.79, 32,442.60 and 9,785.13

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Solution

The fourth proportional to 21,625.79, 32,442.60 and 9,785.13 is: 14,679.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,625.79 : 32,442.60 = 9,785.13 : x
  2. Step 2: Convert to fraction form
    21,625.79/32,442.60 = 9,785.13/x
  3. Step 3: Cross multiply
    21,625.79x = 32,442.60 × 9,785.13
  4. Step 4: Simplify right side
    21,625.79x = 317,455,058.54
  5. Step 5: Solve for x
    x = 317,455,058.54/21,625.79
  6. Step 6: Final answer
    x = 14,679.47

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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.