Home / 31,476.09-47,260.67-21,011.31

Finding the Fourth Proportional to 31,476.09, 47,260.67 and 21,011.31

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Solution

The fourth proportional to 31,476.09, 47,260.67 and 21,011.31 is: 31,548.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,476.09 : 47,260.67 = 21,011.31 : x
  2. Step 2: Convert to fraction form
    31,476.09/47,260.67 = 21,011.31/x
  3. Step 3: Cross multiply
    31,476.09x = 47,260.67 × 21,011.31
  4. Step 4: Simplify right side
    31,476.09x = 993,008,483.12
  5. Step 5: Solve for x
    x = 993,008,483.12/31,476.09
  6. Step 6: Final answer
    x = 31,548.03

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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.