Home / 30,961.52-42,726.89-16,814.35

Finding the Fourth Proportional to 30,961.52, 42,726.89 and 16,814.35

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Solution

The fourth proportional to 30,961.52, 42,726.89 and 16,814.35 is: 23,203.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,961.52 : 42,726.89 = 16,814.35 : x
  2. Step 2: Convert to fraction form
    30,961.52/42,726.89 = 16,814.35/x
  3. Step 3: Cross multiply
    30,961.52x = 42,726.89 × 16,814.35
  4. Step 4: Simplify right side
    30,961.52x = 718,424,818.09
  5. Step 5: Solve for x
    x = 718,424,818.09/30,961.52
  6. Step 6: Final answer
    x = 23,203.80

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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.