Home / 38,581.32-53,242.74-21,814.68

Finding the Fourth Proportional to 38,581.32, 53,242.74 and 21,814.68

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Solution

The fourth proportional to 38,581.32, 53,242.74 and 21,814.68 is: 30,104.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,581.32 : 53,242.74 = 21,814.68 : x
  2. Step 2: Convert to fraction form
    38,581.32/53,242.74 = 21,814.68/x
  3. Step 3: Cross multiply
    38,581.32x = 53,242.74 × 21,814.68
  4. Step 4: Simplify right side
    38,581.32x = 1,161,473,335.42
  5. Step 5: Solve for x
    x = 1,161,473,335.42/38,581.32
  6. Step 6: Final answer
    x = 30,104.55

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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.