Home / 28,421.42-42,633.25-10,650.22

Finding the Fourth Proportional to 28,421.42, 42,633.25 and 10,650.22

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Solution

The fourth proportional to 28,421.42, 42,633.25 and 10,650.22 is: 15,975.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,421.42 : 42,633.25 = 10,650.22 : x
  2. Step 2: Convert to fraction form
    28,421.42/42,633.25 = 10,650.22/x
  3. Step 3: Cross multiply
    28,421.42x = 42,633.25 × 10,650.22
  4. Step 4: Simplify right side
    28,421.42x = 454,053,358.61
  5. Step 5: Solve for x
    x = 454,053,358.61/28,421.42
  6. Step 6: Final answer
    x = 15,975.75

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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.