Home / 30,123.90-41,570.55-16,695.18

Finding the Fourth Proportional to 30,123.90, 41,570.55 and 16,695.18

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Solution

The fourth proportional to 30,123.90, 41,570.55 and 16,695.18 is: 23,039.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,123.90 : 41,570.55 = 16,695.18 : x
  2. Step 2: Convert to fraction form
    30,123.90/41,570.55 = 16,695.18/x
  3. Step 3: Cross multiply
    30,123.90x = 41,570.55 × 16,695.18
  4. Step 4: Simplify right side
    30,123.90x = 694,027,814.95
  5. Step 5: Solve for x
    x = 694,027,814.95/30,123.90
  6. Step 6: Final answer
    x = 23,039.11

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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.