Home / 31,242.40-46,811.76-21,988.96

Finding the Fourth Proportional to 31,242.40, 46,811.76 and 21,988.96

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Solution

The fourth proportional to 31,242.40, 46,811.76 and 21,988.96 is: 32,946.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,242.40 : 46,811.76 = 21,988.96 : x
  2. Step 2: Convert to fraction form
    31,242.40/46,811.76 = 21,988.96/x
  3. Step 3: Cross multiply
    31,242.40x = 46,811.76 × 21,988.96
  4. Step 4: Simplify right side
    31,242.40x = 1,029,341,918.17
  5. Step 5: Solve for x
    x = 1,029,341,918.17/31,242.40
  6. Step 6: Final answer
    x = 32,946.95

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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.