Home / 30,730.19-42,405.05-17,298.97

Finding the Fourth Proportional to 30,730.19, 42,405.05 and 17,298.97

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Solution

The fourth proportional to 30,730.19, 42,405.05 and 17,298.97 is: 23,871.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,730.19 : 42,405.05 = 17,298.97 : x
  2. Step 2: Convert to fraction form
    30,730.19/42,405.05 = 17,298.97/x
  3. Step 3: Cross multiply
    30,730.19x = 42,405.05 × 17,298.97
  4. Step 4: Simplify right side
    30,730.19x = 733,563,625.03
  5. Step 5: Solve for x
    x = 733,563,625.03/30,730.19
  6. Step 6: Final answer
    x = 23,871.11

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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.