Home / 21,093.04-31,648.29-9,240.69

Finding the Fourth Proportional to 21,093.04, 31,648.29 and 9,240.69

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Solution

The fourth proportional to 21,093.04, 31,648.29 and 9,240.69 is: 13,864.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,093.04 : 31,648.29 = 9,240.69 : x
  2. Step 2: Convert to fraction form
    21,093.04/31,648.29 = 9,240.69/x
  3. Step 3: Cross multiply
    21,093.04x = 31,648.29 × 9,240.69
  4. Step 4: Simplify right side
    21,093.04x = 292,452,036.92
  5. Step 5: Solve for x
    x = 292,452,036.92/21,093.04
  6. Step 6: Final answer
    x = 13,864.86

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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.