Home / 31,495.70-47,243.48-21,605.02

Finding the Fourth Proportional to 31,495.70, 47,243.48 and 21,605.02

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Solution

The fourth proportional to 31,495.70, 47,243.48 and 21,605.02 is: 32,407.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,495.70 : 47,243.48 = 21,605.02 : x
  2. Step 2: Convert to fraction form
    31,495.70/47,243.48 = 21,605.02/x
  3. Step 3: Cross multiply
    31,495.70x = 47,243.48 × 21,605.02
  4. Step 4: Simplify right side
    31,495.70x = 1,020,696,330.27
  5. Step 5: Solve for x
    x = 1,020,696,330.27/31,495.70
  6. Step 6: Final answer
    x = 32,407.48

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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.