Home / 30,585.74-45,819.41-17,904.78

Finding the Fourth Proportional to 30,585.74, 45,819.41 and 17,904.78

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Solution

The fourth proportional to 30,585.74, 45,819.41 and 17,904.78 is: 26,822.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,585.74 : 45,819.41 = 17,904.78 : x
  2. Step 2: Convert to fraction form
    30,585.74/45,819.41 = 17,904.78/x
  3. Step 3: Cross multiply
    30,585.74x = 45,819.41 × 17,904.78
  4. Step 4: Simplify right side
    30,585.74x = 820,386,366.26
  5. Step 5: Solve for x
    x = 820,386,366.26/30,585.74
  6. Step 6: Final answer
    x = 26,822.52

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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.