Home / 26,230.40-39,345.60-21,046.40

Finding the Fourth Proportional to 26,230.40, 39,345.60 and 21,046.40

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Solution

The fourth proportional to 26,230.40, 39,345.60 and 21,046.40 is: 31,569.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,230.40 : 39,345.60 = 21,046.40 : x
  2. Step 2: Convert to fraction form
    26,230.40/39,345.60 = 21,046.40/x
  3. Step 3: Cross multiply
    26,230.40x = 39,345.60 × 21,046.40
  4. Step 4: Simplify right side
    26,230.40x = 828,083,235.84
  5. Step 5: Solve for x
    x = 828,083,235.84/26,230.40
  6. Step 6: Final answer
    x = 31,569.60

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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.