Home / 53,331.32-79,940.76-21,729.17

Finding the Fourth Proportional to 53,331.32, 79,940.76 and 21,729.17

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Solution

The fourth proportional to 53,331.32, 79,940.76 and 21,729.17 is: 32,570.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,331.32 : 79,940.76 = 21,729.17 : x
  2. Step 2: Convert to fraction form
    53,331.32/79,940.76 = 21,729.17/x
  3. Step 3: Cross multiply
    53,331.32x = 79,940.76 × 21,729.17
  4. Step 4: Simplify right side
    53,331.32x = 1,737,045,964.27
  5. Step 5: Solve for x
    x = 1,737,045,964.27/53,331.32
  6. Step 6: Final answer
    x = 32,570.84

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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.