Home / 25,784.46-38,712.62-13,313.48

Finding the Fourth Proportional to 25,784.46, 38,712.62 and 13,313.48

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Solution

The fourth proportional to 25,784.46, 38,712.62 and 13,313.48 is: 19,988.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,784.46 : 38,712.62 = 13,313.48 : x
  2. Step 2: Convert to fraction form
    25,784.46/38,712.62 = 13,313.48/x
  3. Step 3: Cross multiply
    25,784.46x = 38,712.62 × 13,313.48
  4. Step 4: Simplify right side
    25,784.46x = 515,399,674.71
  5. Step 5: Solve for x
    x = 515,399,674.71/25,784.46
  6. Step 6: Final answer
    x = 19,988.77

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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.