Home / 28,516.32-39,352.64-15,941.07

Finding the Fourth Proportional to 28,516.32, 39,352.64 and 15,941.07

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Solution

The fourth proportional to 28,516.32, 39,352.64 and 15,941.07 is: 21,998.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,516.32 : 39,352.64 = 15,941.07 : x
  2. Step 2: Convert to fraction form
    28,516.32/39,352.64 = 15,941.07/x
  3. Step 3: Cross multiply
    28,516.32x = 39,352.64 × 15,941.07
  4. Step 4: Simplify right side
    28,516.32x = 627,323,109.22
  5. Step 5: Solve for x
    x = 627,323,109.22/28,516.32
  6. Step 6: Final answer
    x = 21,998.74

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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.