Home / 31,742.01-47,623.07-19,105.61

Finding the Fourth Proportional to 31,742.01, 47,623.07 and 19,105.61

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Solution

The fourth proportional to 31,742.01, 47,623.07 and 19,105.61 is: 28,664.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,742.01 : 47,623.07 = 19,105.61 : x
  2. Step 2: Convert to fraction form
    31,742.01/47,623.07 = 19,105.61/x
  3. Step 3: Cross multiply
    31,742.01x = 47,623.07 × 19,105.61
  4. Step 4: Simplify right side
    31,742.01x = 909,867,612.07
  5. Step 5: Solve for x
    x = 909,867,612.07/31,742.01
  6. Step 6: Final answer
    x = 28,664.46

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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.