Home / 31,988.28-47,984.34-9,801.84

Finding the Fourth Proportional to 31,988.28, 47,984.34 and 9,801.84

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Solution

The fourth proportional to 31,988.28, 47,984.34 and 9,801.84 is: 14,703.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,988.28 : 47,984.34 = 9,801.84 : x
  2. Step 2: Convert to fraction form
    31,988.28/47,984.34 = 9,801.84/x
  3. Step 3: Cross multiply
    31,988.28x = 47,984.34 × 9,801.84
  4. Step 4: Simplify right side
    31,988.28x = 470,334,823.19
  5. Step 5: Solve for x
    x = 470,334,823.19/31,988.28
  6. Step 6: Final answer
    x = 14,703.35

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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.