Home / 26,329.60-39,494.40-21,318.40

Finding the Fourth Proportional to 26,329.60, 39,494.40 and 21,318.40

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Solution

The fourth proportional to 26,329.60, 39,494.40 and 21,318.40 is: 31,977.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,329.60 : 39,494.40 = 21,318.40 : x
  2. Step 2: Convert to fraction form
    26,329.60/39,494.40 = 21,318.40/x
  3. Step 3: Cross multiply
    26,329.60x = 39,494.40 × 21,318.40
  4. Step 4: Simplify right side
    26,329.60x = 841,957,416.96
  5. Step 5: Solve for x
    x = 841,957,416.96/26,329.60
  6. Step 6: Final answer
    x = 31,977.60

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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.