Home / 30,905.82-42,652.67-17,479.46

Finding the Fourth Proportional to 30,905.82, 42,652.67 and 17,479.46

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Solution

The fourth proportional to 30,905.82, 42,652.67 and 17,479.46 is: 24,123.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,905.82 : 42,652.67 = 17,479.46 : x
  2. Step 2: Convert to fraction form
    30,905.82/42,652.67 = 17,479.46/x
  3. Step 3: Cross multiply
    30,905.82x = 42,652.67 × 17,479.46
  4. Step 4: Simplify right side
    30,905.82x = 745,545,639.16
  5. Step 5: Solve for x
    x = 745,545,639.16/30,905.82
  6. Step 6: Final answer
    x = 24,123.15

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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.