Home / 31,871.06-47,806.50-9,684.32

Finding the Fourth Proportional to 31,871.06, 47,806.50 and 9,684.32

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Solution

The fourth proportional to 31,871.06, 47,806.50 and 9,684.32 is: 14,526.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,871.06 : 47,806.50 = 9,684.32 : x
  2. Step 2: Convert to fraction form
    31,871.06/47,806.50 = 9,684.32/x
  3. Step 3: Cross multiply
    31,871.06x = 47,806.50 × 9,684.32
  4. Step 4: Simplify right side
    31,871.06x = 462,973,444.08
  5. Step 5: Solve for x
    x = 462,973,444.08/31,871.06
  6. Step 6: Final answer
    x = 14,526.45

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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.