Home / 38,440.74-52,969.49-28,353.21

Finding the Fourth Proportional to 38,440.74, 52,969.49 and 28,353.21

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Solution

The fourth proportional to 38,440.74, 52,969.49 and 28,353.21 is: 39,069.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,440.74 : 52,969.49 = 28,353.21 : x
  2. Step 2: Convert to fraction form
    38,440.74/52,969.49 = 28,353.21/x
  3. Step 3: Cross multiply
    38,440.74x = 52,969.49 × 28,353.21
  4. Step 4: Simplify right side
    38,440.74x = 1,501,854,998.97
  5. Step 5: Solve for x
    x = 1,501,854,998.97/38,440.74
  6. Step 6: Final answer
    x = 39,069.35

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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.