Home / 38,931.21-53,723.75-22,160.97

Finding the Fourth Proportional to 38,931.21, 53,723.75 and 22,160.97

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Solution

The fourth proportional to 38,931.21, 53,723.75 and 22,160.97 is: 30,581.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,931.21 : 53,723.75 = 22,160.97 : x
  2. Step 2: Convert to fraction form
    38,931.21/53,723.75 = 22,160.97/x
  3. Step 3: Cross multiply
    38,931.21x = 53,723.75 × 22,160.97
  4. Step 4: Simplify right side
    38,931.21x = 1,190,570,301.23
  5. Step 5: Solve for x
    x = 1,190,570,301.23/38,931.21
  6. Step 6: Final answer
    x = 30,581.38

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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.