Home / 57,215.58-85,831.56-21,667.32

Finding the Fourth Proportional to 57,215.58, 85,831.56 and 21,667.32

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Solution

The fourth proportional to 57,215.58, 85,831.56 and 21,667.32 is: 32,504.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,215.58 : 85,831.56 = 21,667.32 : x
  2. Step 2: Convert to fraction form
    57,215.58/85,831.56 = 21,667.32/x
  3. Step 3: Cross multiply
    57,215.58x = 85,831.56 × 21,667.32
  4. Step 4: Simplify right side
    57,215.58x = 1,859,739,876.62
  5. Step 5: Solve for x
    x = 1,859,739,876.62/57,215.58
  6. Step 6: Final answer
    x = 32,504.08

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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.