Home / 28,707.84-39,612.72-15,960.24

Finding the Fourth Proportional to 28,707.84, 39,612.72 and 15,960.24

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Solution

The fourth proportional to 28,707.84, 39,612.72 and 15,960.24 is: 22,022.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,707.84 : 39,612.72 = 15,960.24 : x
  2. Step 2: Convert to fraction form
    28,707.84/39,612.72 = 15,960.24/x
  3. Step 3: Cross multiply
    28,707.84x = 39,612.72 × 15,960.24
  4. Step 4: Simplify right side
    28,707.84x = 632,228,518.25
  5. Step 5: Solve for x
    x = 632,228,518.25/28,707.84
  6. Step 6: Final answer
    x = 22,022.85

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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.