Home / 29,345.89-40,465.24-21,806.21

Finding the Fourth Proportional to 29,345.89, 40,465.24 and 21,806.21

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Solution

The fourth proportional to 29,345.89, 40,465.24 and 21,806.21 is: 30,068.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,345.89 : 40,465.24 = 21,806.21 : x
  2. Step 2: Convert to fraction form
    29,345.89/40,465.24 = 21,806.21/x
  3. Step 3: Cross multiply
    29,345.89x = 40,465.24 × 21,806.21
  4. Step 4: Simplify right side
    29,345.89x = 882,393,466.62
  5. Step 5: Solve for x
    x = 882,393,466.62/29,345.89
  6. Step 6: Final answer
    x = 30,068.72

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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.