Home / 28,689.49-39,604.98-19,145.26

Finding the Fourth Proportional to 28,689.49, 39,604.98 and 19,145.26

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Solution

The fourth proportional to 28,689.49, 39,604.98 and 19,145.26 is: 26,429.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,689.49 : 39,604.98 = 19,145.26 : x
  2. Step 2: Convert to fraction form
    28,689.49/39,604.98 = 19,145.26/x
  3. Step 3: Cross multiply
    28,689.49x = 39,604.98 × 19,145.26
  4. Step 4: Simplify right side
    28,689.49x = 758,247,639.39
  5. Step 5: Solve for x
    x = 758,247,639.39/28,689.49
  6. Step 6: Final answer
    x = 26,429.46

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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.