Home / 30,965.82-42,733.05-16,818.66

Finding the Fourth Proportional to 30,965.82, 42,733.05 and 16,818.66

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Solution

The fourth proportional to 30,965.82, 42,733.05 and 16,818.66 is: 23,209.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,965.82 : 42,733.05 = 16,818.66 : x
  2. Step 2: Convert to fraction form
    30,965.82/42,733.05 = 16,818.66/x
  3. Step 3: Cross multiply
    30,965.82x = 42,733.05 × 16,818.66
  4. Step 4: Simplify right side
    30,965.82x = 718,712,638.71
  5. Step 5: Solve for x
    x = 718,712,638.71/30,965.82
  6. Step 6: Final answer
    x = 23,209.87

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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.