Home / 31,926.65-47,875.88-11,928.35

Finding the Fourth Proportional to 31,926.65, 47,875.88 and 11,928.35

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Solution

The fourth proportional to 31,926.65, 47,875.88 and 11,928.35 is: 17,887.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,926.65 : 47,875.88 = 11,928.35 : x
  2. Step 2: Convert to fraction form
    31,926.65/47,875.88 = 11,928.35/x
  3. Step 3: Cross multiply
    31,926.65x = 47,875.88 × 11,928.35
  4. Step 4: Simplify right side
    31,926.65x = 571,079,954.18
  5. Step 5: Solve for x
    x = 571,079,954.18/31,926.65
  6. Step 6: Final answer
    x = 17,887.25

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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.