Home / 38,667.32-53,360.89-21,900.32

Finding the Fourth Proportional to 38,667.32, 53,360.89 and 21,900.32

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Solution

The fourth proportional to 38,667.32, 53,360.89 and 21,900.32 is: 30,222.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,667.32 : 53,360.89 = 21,900.32 : x
  2. Step 2: Convert to fraction form
    38,667.32/53,360.89 = 21,900.32/x
  3. Step 3: Cross multiply
    38,667.32x = 53,360.89 × 21,900.32
  4. Step 4: Simplify right side
    38,667.32x = 1,168,620,566.48
  5. Step 5: Solve for x
    x = 1,168,620,566.48/38,667.32
  6. Step 6: Final answer
    x = 30,222.44

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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.