Home / 20,401.07-28,095.66-17,711.06

Finding the Fourth Proportional to 20,401.07, 28,095.66 and 17,711.06

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Solution

The fourth proportional to 20,401.07, 28,095.66 and 17,711.06 is: 24,391.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,401.07 : 28,095.66 = 17,711.06 : x
  2. Step 2: Convert to fraction form
    20,401.07/28,095.66 = 17,711.06/x
  3. Step 3: Cross multiply
    20,401.07x = 28,095.66 × 17,711.06
  4. Step 4: Simplify right side
    20,401.07x = 497,603,779.52
  5. Step 5: Solve for x
    x = 497,603,779.52/20,401.07
  6. Step 6: Final answer
    x = 24,391.07

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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.