Home / 30,301.86-41,815.62-16,872.81

Finding the Fourth Proportional to 30,301.86, 41,815.62 and 16,872.81

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Solution

The fourth proportional to 30,301.86, 41,815.62 and 16,872.81 is: 23,283.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,301.86 : 41,815.62 = 16,872.81 : x
  2. Step 2: Convert to fraction form
    30,301.86/41,815.62 = 16,872.81/x
  3. Step 3: Cross multiply
    30,301.86x = 41,815.62 × 16,872.81
  4. Step 4: Simplify right side
    30,301.86x = 705,547,011.29
  5. Step 5: Solve for x
    x = 705,547,011.29/30,301.86
  6. Step 6: Final answer
    x = 23,283.95

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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.