Home / 31,985.76-47,984.40-14,463.84

Finding the Fourth Proportional to 31,985.76, 47,984.40 and 14,463.84

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Solution

The fourth proportional to 31,985.76, 47,984.40 and 14,463.84 is: 21,698.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,985.76 : 47,984.40 = 14,463.84 : x
  2. Step 2: Convert to fraction form
    31,985.76/47,984.40 = 14,463.84/x
  3. Step 3: Cross multiply
    31,985.76x = 47,984.40 × 14,463.84
  4. Step 4: Simplify right side
    31,985.76x = 694,038,684.10
  5. Step 5: Solve for x
    x = 694,038,684.10/31,985.76
  6. Step 6: Final answer
    x = 21,698.36

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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.