Home / 30,803.58-42,508.89-17,374.79

Finding the Fourth Proportional to 30,803.58, 42,508.89 and 17,374.79

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Solution

The fourth proportional to 30,803.58, 42,508.89 and 17,374.79 is: 23,977.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,803.58 : 42,508.89 = 17,374.79 : x
  2. Step 2: Convert to fraction form
    30,803.58/42,508.89 = 17,374.79/x
  3. Step 3: Cross multiply
    30,803.58x = 42,508.89 × 17,374.79
  4. Step 4: Simplify right side
    30,803.58x = 738,583,143.16
  5. Step 5: Solve for x
    x = 738,583,143.16/30,803.58
  6. Step 6: Final answer
    x = 23,977.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.