Home / 28,378.34-39,148.08-17,042.39

Finding the Fourth Proportional to 28,378.34, 39,148.08 and 17,042.39

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Solution

The fourth proportional to 28,378.34, 39,148.08 and 17,042.39 is: 23,510.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,378.34 : 39,148.08 = 17,042.39 : x
  2. Step 2: Convert to fraction form
    28,378.34/39,148.08 = 17,042.39/x
  3. Step 3: Cross multiply
    28,378.34x = 39,148.08 × 17,042.39
  4. Step 4: Simplify right side
    28,378.34x = 667,176,847.11
  5. Step 5: Solve for x
    x = 667,176,847.11/28,378.34
  6. Step 6: Final answer
    x = 23,510.07

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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.