Home / 31,783.22-47,681.66-10,723.79

Finding the Fourth Proportional to 31,783.22, 47,681.66 and 10,723.79

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Solution

The fourth proportional to 31,783.22, 47,681.66 and 10,723.79 is: 16,087.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,783.22 : 47,681.66 = 10,723.79 : x
  2. Step 2: Convert to fraction form
    31,783.22/47,681.66 = 10,723.79/x
  3. Step 3: Cross multiply
    31,783.22x = 47,681.66 × 10,723.79
  4. Step 4: Simplify right side
    31,783.22x = 511,328,254.71
  5. Step 5: Solve for x
    x = 511,328,254.71/31,783.22
  6. Step 6: Final answer
    x = 16,087.99

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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.