Home / 27,648.42-38,155.78-15,712.26

Finding the Fourth Proportional to 27,648.42, 38,155.78 and 15,712.26

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Solution

The fourth proportional to 27,648.42, 38,155.78 and 15,712.26 is: 21,683.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,648.42 : 38,155.78 = 15,712.26 : x
  2. Step 2: Convert to fraction form
    27,648.42/38,155.78 = 15,712.26/x
  3. Step 3: Cross multiply
    27,648.42x = 38,155.78 × 15,712.26
  4. Step 4: Simplify right side
    27,648.42x = 599,513,535.86
  5. Step 5: Solve for x
    x = 599,513,535.86/27,648.42
  6. Step 6: Final answer
    x = 21,683.46

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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.