Home / 28,632.69-39,513.15-15,885.87

Finding the Fourth Proportional to 28,632.69, 39,513.15 and 15,885.87

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Solution

The fourth proportional to 28,632.69, 39,513.15 and 15,885.87 is: 21,922.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,632.69 : 39,513.15 = 15,885.87 : x
  2. Step 2: Convert to fraction form
    28,632.69/39,513.15 = 15,885.87/x
  3. Step 3: Cross multiply
    28,632.69x = 39,513.15 × 15,885.87
  4. Step 4: Simplify right side
    28,632.69x = 627,700,764.19
  5. Step 5: Solve for x
    x = 627,700,764.19/28,632.69
  6. Step 6: Final answer
    x = 21,922.52

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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.