Home / 31,990.39-47,985.60-16,398.07

Finding the Fourth Proportional to 31,990.39, 47,985.60 and 16,398.07

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Solution

The fourth proportional to 31,990.39, 47,985.60 and 16,398.07 is: 24,597.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,990.39 : 47,985.60 = 16,398.07 : x
  2. Step 2: Convert to fraction form
    31,990.39/47,985.60 = 16,398.07/x
  3. Step 3: Cross multiply
    31,990.39x = 47,985.60 × 16,398.07
  4. Step 4: Simplify right side
    31,990.39x = 786,871,227.79
  5. Step 5: Solve for x
    x = 786,871,227.79/31,990.39
  6. Step 6: Final answer
    x = 24,597.11

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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.