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Finding the Fourth Proportional to 40,682.52, 61,032.70 and 12,218.22

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Solution

The fourth proportional to 40,682.52, 61,032.70 and 12,218.22 is: 18,330.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,682.52 : 61,032.70 = 12,218.22 : x
  2. Step 2: Convert to fraction form
    40,682.52/61,032.70 = 12,218.22/x
  3. Step 3: Cross multiply
    40,682.52x = 61,032.70 × 12,218.22
  4. Step 4: Simplify right side
    40,682.52x = 745,710,955.79
  5. Step 5: Solve for x
    x = 745,710,955.79/40,682.52
  6. Step 6: Final answer
    x = 18,330.01

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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.