Home / 30,306.12-45,427.59-17,815.92

Finding the Fourth Proportional to 30,306.12, 45,427.59 and 17,815.92

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Solution

The fourth proportional to 30,306.12, 45,427.59 and 17,815.92 is: 26,705.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,306.12 : 45,427.59 = 17,815.92 : x
  2. Step 2: Convert to fraction form
    30,306.12/45,427.59 = 17,815.92/x
  3. Step 3: Cross multiply
    30,306.12x = 45,427.59 × 17,815.92
  4. Step 4: Simplify right side
    30,306.12x = 809,334,309.23
  5. Step 5: Solve for x
    x = 809,334,309.23/30,306.12
  6. Step 6: Final answer
    x = 26,705.31

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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.