Home / 28,480.32-39,302.96-15,905.07

Finding the Fourth Proportional to 28,480.32, 39,302.96 and 15,905.07

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Solution

The fourth proportional to 28,480.32, 39,302.96 and 15,905.07 is: 21,949.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,480.32 : 39,302.96 = 15,905.07 : x
  2. Step 2: Convert to fraction form
    28,480.32/39,302.96 = 15,905.07/x
  3. Step 3: Cross multiply
    28,480.32x = 39,302.96 × 15,905.07
  4. Step 4: Simplify right side
    28,480.32x = 625,116,250.48
  5. Step 5: Solve for x
    x = 625,116,250.48/28,480.32
  6. Step 6: Final answer
    x = 21,949.06

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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.