Home / 30,764.30-42,454.73-16,617.14

Finding the Fourth Proportional to 30,764.30, 42,454.73 and 16,617.14

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Solution

The fourth proportional to 30,764.30, 42,454.73 and 16,617.14 is: 22,931.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,764.30 : 42,454.73 = 16,617.14 : x
  2. Step 2: Convert to fraction form
    30,764.30/42,454.73 = 16,617.14/x
  3. Step 3: Cross multiply
    30,764.30x = 42,454.73 × 16,617.14
  4. Step 4: Simplify right side
    30,764.30x = 705,476,309.19
  5. Step 5: Solve for x
    x = 705,476,309.19/30,764.30
  6. Step 6: Final answer
    x = 22,931.66

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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.