Home / 30,470.64-45,717.09-15,686.52

Finding the Fourth Proportional to 30,470.64, 45,717.09 and 15,686.52

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Solution

The fourth proportional to 30,470.64, 45,717.09 and 15,686.52 is: 23,535.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,470.64 : 45,717.09 = 15,686.52 : x
  2. Step 2: Convert to fraction form
    30,470.64/45,717.09 = 15,686.52/x
  3. Step 3: Cross multiply
    30,470.64x = 45,717.09 × 15,686.52
  4. Step 4: Simplify right side
    30,470.64x = 717,142,046.63
  5. Step 5: Solve for x
    x = 717,142,046.63/30,470.64
  6. Step 6: Final answer
    x = 23,535.51

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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.