Home / 31,475.09-47,259.17-21,010.31

Finding the Fourth Proportional to 31,475.09, 47,259.17 and 21,010.31

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Solution

The fourth proportional to 31,475.09, 47,259.17 and 21,010.31 is: 31,546.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,475.09 : 47,259.17 = 21,010.31 : x
  2. Step 2: Convert to fraction form
    31,475.09/47,259.17 = 21,010.31/x
  3. Step 3: Cross multiply
    31,475.09x = 47,259.17 × 21,010.31
  4. Step 4: Simplify right side
    31,475.09x = 992,929,706.99
  5. Step 5: Solve for x
    x = 992,929,706.99/31,475.09
  6. Step 6: Final answer
    x = 31,546.52

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1.5x scale

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.