Home / 26,030.27-39,040.49-12,689.87

Finding the Fourth Proportional to 26,030.27, 39,040.49 and 12,689.87

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Solution

The fourth proportional to 26,030.27, 39,040.49 and 12,689.87 is: 19,032.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,030.27 : 39,040.49 = 12,689.87 : x
  2. Step 2: Convert to fraction form
    26,030.27/39,040.49 = 12,689.87/x
  3. Step 3: Cross multiply
    26,030.27x = 39,040.49 × 12,689.87
  4. Step 4: Simplify right side
    26,030.27x = 495,418,484.18
  5. Step 5: Solve for x
    x = 495,418,484.18/26,030.27
  6. Step 6: Final answer
    x = 19,032.40

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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.