Home / 28,585.35-42,881.45-10,818.81

Finding the Fourth Proportional to 28,585.35, 42,881.45 and 10,818.81

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Solution

The fourth proportional to 28,585.35, 42,881.45 and 10,818.81 is: 16,229.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,585.35 : 42,881.45 = 10,818.81 : x
  2. Step 2: Convert to fraction form
    28,585.35/42,881.45 = 10,818.81/x
  3. Step 3: Cross multiply
    28,585.35x = 42,881.45 × 10,818.81
  4. Step 4: Simplify right side
    28,585.35x = 463,926,205.98
  5. Step 5: Solve for x
    x = 463,926,205.98/28,585.35
  6. Step 6: Final answer
    x = 16,229.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.