Home / 30,834.19-42,551.20-16,687.04

Finding the Fourth Proportional to 30,834.19, 42,551.20 and 16,687.04

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Solution

The fourth proportional to 30,834.19, 42,551.20 and 16,687.04 is: 23,028.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,834.19 : 42,551.20 = 16,687.04 : x
  2. Step 2: Convert to fraction form
    30,834.19/42,551.20 = 16,687.04/x
  3. Step 3: Cross multiply
    30,834.19x = 42,551.20 × 16,687.04
  4. Step 4: Simplify right side
    30,834.19x = 710,053,457.29
  5. Step 5: Solve for x
    x = 710,053,457.29/30,834.19
  6. Step 6: Final answer
    x = 23,028.12

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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.