Home / 30,920.15-42,669.83-17,491.13

Finding the Fourth Proportional to 30,920.15, 42,669.83 and 17,491.13

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Solution

The fourth proportional to 30,920.15, 42,669.83 and 17,491.13 is: 24,137.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,920.15 : 42,669.83 = 17,491.13 : x
  2. Step 2: Convert to fraction form
    30,920.15/42,669.83 = 17,491.13/x
  3. Step 3: Cross multiply
    30,920.15x = 42,669.83 × 17,491.13
  4. Step 4: Simplify right side
    30,920.15x = 746,343,242.80
  5. Step 5: Solve for x
    x = 746,343,242.80/30,920.15
  6. Step 6: Final answer
    x = 24,137.76

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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.