Home / 31,965.61-47,964.61-21,299.26

Finding the Fourth Proportional to 31,965.61, 47,964.61 and 21,299.26

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Solution

The fourth proportional to 31,965.61, 47,964.61 and 21,299.26 is: 31,959.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,965.61 : 47,964.61 = 21,299.26 : x
  2. Step 2: Convert to fraction form
    31,965.61/47,964.61 = 21,299.26/x
  3. Step 3: Cross multiply
    31,965.61x = 47,964.61 × 21,299.26
  4. Step 4: Simplify right side
    31,965.61x = 1,021,610,699.19
  5. Step 5: Solve for x
    x = 1,021,610,699.19/31,965.61
  6. Step 6: Final answer
    x = 31,959.68

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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.