Home / 35,687.40-53,555.76-12,313.92

Finding the Fourth Proportional to 35,687.40, 53,555.76 and 12,313.92

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Solution

The fourth proportional to 35,687.40, 53,555.76 and 12,313.92 is: 18,479.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,687.40 : 53,555.76 = 12,313.92 : x
  2. Step 2: Convert to fraction form
    35,687.40/53,555.76 = 12,313.92/x
  3. Step 3: Cross multiply
    35,687.40x = 53,555.76 × 12,313.92
  4. Step 4: Simplify right side
    35,687.40x = 659,481,344.18
  5. Step 5: Solve for x
    x = 659,481,344.18/35,687.40
  6. Step 6: Final answer
    x = 18,479.39

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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.