Home / 34,420.29-47,479.87-21,653.34

Finding the Fourth Proportional to 34,420.29, 47,479.87 and 21,653.34

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Solution

The fourth proportional to 34,420.29, 47,479.87 and 21,653.34 is: 29,868.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,420.29 : 47,479.87 = 21,653.34 : x
  2. Step 2: Convert to fraction form
    34,420.29/47,479.87 = 21,653.34/x
  3. Step 3: Cross multiply
    34,420.29x = 47,479.87 × 21,653.34
  4. Step 4: Simplify right side
    34,420.29x = 1,028,097,768.27
  5. Step 5: Solve for x
    x = 1,028,097,768.27/34,420.29
  6. Step 6: Final answer
    x = 29,868.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.