Home / 29,554.41-40,782.17-20,621.12

Finding the Fourth Proportional to 29,554.41, 40,782.17 and 20,621.12

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Solution

The fourth proportional to 29,554.41, 40,782.17 and 20,621.12 is: 28,455.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,554.41 : 40,782.17 = 20,621.12 : x
  2. Step 2: Convert to fraction form
    29,554.41/40,782.17 = 20,621.12/x
  3. Step 3: Cross multiply
    29,554.41x = 40,782.17 × 20,621.12
  4. Step 4: Simplify right side
    29,554.41x = 840,973,714.41
  5. Step 5: Solve for x
    x = 840,973,714.41/29,554.41
  6. Step 6: Final answer
    x = 28,455.10

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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.