Home / 31,578.97-47,368.68-21,688.26

Finding the Fourth Proportional to 31,578.97, 47,368.68 and 21,688.26

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Solution

The fourth proportional to 31,578.97, 47,368.68 and 21,688.26 is: 32,532.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,578.97 : 47,368.68 = 21,688.26 : x
  2. Step 2: Convert to fraction form
    31,578.97/47,368.68 = 21,688.26/x
  3. Step 3: Cross multiply
    31,578.97x = 47,368.68 × 21,688.26
  4. Step 4: Simplify right side
    31,578.97x = 1,027,344,139.26
  5. Step 5: Solve for x
    x = 1,027,344,139.26/31,578.97
  6. Step 6: Final answer
    x = 32,532.54

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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.