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Finding the Fourth Proportional to 22,700.35, 31,327.50 and 18,917.19

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Solution

The fourth proportional to 22,700.35, 31,327.50 and 18,917.19 is: 26,106.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,700.35 : 31,327.50 = 18,917.19 : x
  2. Step 2: Convert to fraction form
    22,700.35/31,327.50 = 18,917.19/x
  3. Step 3: Cross multiply
    22,700.35x = 31,327.50 × 18,917.19
  4. Step 4: Simplify right side
    22,700.35x = 592,628,152.25
  5. Step 5: Solve for x
    x = 592,628,152.25/22,700.35
  6. Step 6: Final answer
    x = 26,106.56

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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.