Home / 38,340.33-52,905.06-21,340.50

Finding the Fourth Proportional to 38,340.33, 52,905.06 and 21,340.50

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Solution

The fourth proportional to 38,340.33, 52,905.06 and 21,340.50 is: 29,447.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,340.33 : 52,905.06 = 21,340.50 : x
  2. Step 2: Convert to fraction form
    38,340.33/52,905.06 = 21,340.50/x
  3. Step 3: Cross multiply
    38,340.33x = 52,905.06 × 21,340.50
  4. Step 4: Simplify right side
    38,340.33x = 1,129,020,432.93
  5. Step 5: Solve for x
    x = 1,129,020,432.93/38,340.33
  6. Step 6: Final answer
    x = 29,447.33

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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.