Home / 20,746.22-31,091.53-19,417.61

Finding the Fourth Proportional to 20,746.22, 31,091.53 and 19,417.61

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Solution

The fourth proportional to 20,746.22, 31,091.53 and 19,417.61 is: 29,100.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,746.22 : 31,091.53 = 19,417.61 : x
  2. Step 2: Convert to fraction form
    20,746.22/31,091.53 = 19,417.61/x
  3. Step 3: Cross multiply
    20,746.22x = 31,091.53 × 19,417.61
  4. Step 4: Simplify right side
    20,746.22x = 603,723,233.03
  5. Step 5: Solve for x
    x = 603,723,233.03/20,746.22
  6. Step 6: Final answer
    x = 29,100.40

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1.5x scale

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.