Home / 31,435.71-47,124.27-21,579.63

Finding the Fourth Proportional to 31,435.71, 47,124.27 and 21,579.63

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Solution

The fourth proportional to 31,435.71, 47,124.27 and 21,579.63 is: 32,349.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,435.71 : 47,124.27 = 21,579.63 : x
  2. Step 2: Convert to fraction form
    31,435.71/47,124.27 = 21,579.63/x
  3. Step 3: Cross multiply
    31,435.71x = 47,124.27 × 21,579.63
  4. Step 4: Simplify right side
    31,435.71x = 1,016,924,310.62
  5. Step 5: Solve for x
    x = 1,016,924,310.62/31,435.71
  6. Step 6: Final answer
    x = 32,349.33

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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.