Home / 35,855.28-53,752.14-12,478.68

Finding the Fourth Proportional to 35,855.28, 53,752.14 and 12,478.68

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Solution

The fourth proportional to 35,855.28, 53,752.14 and 12,478.68 is: 18,707.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,855.28 : 53,752.14 = 12,478.68 : x
  2. Step 2: Convert to fraction form
    35,855.28/53,752.14 = 12,478.68/x
  3. Step 3: Cross multiply
    35,855.28x = 53,752.14 × 12,478.68
  4. Step 4: Simplify right side
    35,855.28x = 670,755,754.38
  5. Step 5: Solve for x
    x = 670,755,754.38/35,855.28
  6. Step 6: Final answer
    x = 18,707.31

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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.