Home / 30,834.14-42,551.24-16,686.98

Finding the Fourth Proportional to 30,834.14, 42,551.24 and 16,686.98

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Solution

The fourth proportional to 30,834.14, 42,551.24 and 16,686.98 is: 23,028.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,834.14 : 42,551.24 = 16,686.98 : x
  2. Step 2: Convert to fraction form
    30,834.14/42,551.24 = 16,686.98/x
  3. Step 3: Cross multiply
    30,834.14x = 42,551.24 × 16,686.98
  4. Step 4: Simplify right side
    30,834.14x = 710,051,838.95
  5. Step 5: Solve for x
    x = 710,051,838.95/30,834.14
  6. Step 6: Final answer
    x = 23,028.11

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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.