Home / 28,503.29-39,334.25-15,928.04

Finding the Fourth Proportional to 28,503.29, 39,334.25 and 15,928.04

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Solution

The fourth proportional to 28,503.29, 39,334.25 and 15,928.04 is: 21,980.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,503.29 : 39,334.25 = 15,928.04 : x
  2. Step 2: Convert to fraction form
    28,503.29/39,334.25 = 15,928.04/x
  3. Step 3: Cross multiply
    28,503.29x = 39,334.25 × 15,928.04
  4. Step 4: Simplify right side
    28,503.29x = 626,517,507.37
  5. Step 5: Solve for x
    x = 626,517,507.37/28,503.29
  6. Step 6: Final answer
    x = 21,980.53

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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.