Home / 21,765.60-32,647.03-12,993.91

Finding the Fourth Proportional to 21,765.60, 32,647.03 and 12,993.91

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Solution

The fourth proportional to 21,765.60, 32,647.03 and 12,993.91 is: 19,490.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,765.60 : 32,647.03 = 12,993.91 : x
  2. Step 2: Convert to fraction form
    21,765.60/32,647.03 = 12,993.91/x
  3. Step 3: Cross multiply
    21,765.60x = 32,647.03 × 12,993.91
  4. Step 4: Simplify right side
    21,765.60x = 424,212,569.59
  5. Step 5: Solve for x
    x = 424,212,569.59/21,765.60
  6. Step 6: Final answer
    x = 19,490.05

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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.