Home / 28,707.92-39,617.61-15,961.49

Finding the Fourth Proportional to 28,707.92, 39,617.61 and 15,961.49

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Solution

The fourth proportional to 28,707.92, 39,617.61 and 15,961.49 is: 22,027.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,707.92 : 39,617.61 = 15,961.49 : x
  2. Step 2: Convert to fraction form
    28,707.92/39,617.61 = 15,961.49/x
  3. Step 3: Cross multiply
    28,707.92x = 39,617.61 × 15,961.49
  4. Step 4: Simplify right side
    28,707.92x = 632,356,085.84
  5. Step 5: Solve for x
    x = 632,356,085.84/28,707.92
  6. Step 6: Final answer
    x = 22,027.23

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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.