Home / 31,965.86-47,964.99-21,299.51

Finding the Fourth Proportional to 31,965.86, 47,964.99 and 21,299.51

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Solution

The fourth proportional to 31,965.86, 47,964.99 and 21,299.51 is: 31,960.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,965.86 : 47,964.99 = 21,299.51 : x
  2. Step 2: Convert to fraction form
    31,965.86/47,964.99 = 21,299.51/x
  3. Step 3: Cross multiply
    31,965.86x = 47,964.99 × 21,299.51
  4. Step 4: Simplify right side
    31,965.86x = 1,021,630,784.15
  5. Step 5: Solve for x
    x = 1,021,630,784.15/31,965.86
  6. Step 6: Final answer
    x = 31,960.06

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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.