Home / 29,870.36-41,205.67-20,898.19

Finding the Fourth Proportional to 29,870.36, 41,205.67 and 20,898.19

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Solution

The fourth proportional to 29,870.36, 41,205.67 and 20,898.19 is: 28,828.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,870.36 : 41,205.67 = 20,898.19 : x
  2. Step 2: Convert to fraction form
    29,870.36/41,205.67 = 20,898.19/x
  3. Step 3: Cross multiply
    29,870.36x = 41,205.67 × 20,898.19
  4. Step 4: Simplify right side
    29,870.36x = 861,123,920.74
  5. Step 5: Solve for x
    x = 861,123,920.74/29,870.36
  6. Step 6: Final answer
    x = 28,828.71

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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.