Home / 38,424.75-53,026.16-20,760.75

Finding the Fourth Proportional to 38,424.75, 53,026.16 and 20,760.75

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Solution

The fourth proportional to 38,424.75, 53,026.16 and 20,760.75 is: 28,649.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,424.75 : 53,026.16 = 20,760.75 : x
  2. Step 2: Convert to fraction form
    38,424.75/53,026.16 = 20,760.75/x
  3. Step 3: Cross multiply
    38,424.75x = 53,026.16 × 20,760.75
  4. Step 4: Simplify right side
    38,424.75x = 1,100,862,747.42
  5. Step 5: Solve for x
    x = 1,100,862,747.42/38,424.75
  6. Step 6: Final answer
    x = 28,649.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.