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Finding the Fourth Proportional to 28,935.04, 43,409.84 and 13,363.68

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Solution

The fourth proportional to 28,935.04, 43,409.84 and 13,363.68 is: 20,048.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,935.04 : 43,409.84 = 13,363.68 : x
  2. Step 2: Convert to fraction form
    28,935.04/43,409.84 = 13,363.68/x
  3. Step 3: Cross multiply
    28,935.04x = 43,409.84 × 13,363.68
  4. Step 4: Simplify right side
    28,935.04x = 580,115,210.61
  5. Step 5: Solve for x
    x = 580,115,210.61/28,935.04
  6. Step 6: Final answer
    x = 20,048.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.