Home / 38,215.04-52,736.48-21,219.20

Finding the Fourth Proportional to 38,215.04, 52,736.48 and 21,219.20

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Solution

The fourth proportional to 38,215.04, 52,736.48 and 21,219.20 is: 29,282.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,215.04 : 52,736.48 = 21,219.20 : x
  2. Step 2: Convert to fraction form
    38,215.04/52,736.48 = 21,219.20/x
  3. Step 3: Cross multiply
    38,215.04x = 52,736.48 × 21,219.20
  4. Step 4: Simplify right side
    38,215.04x = 1,119,025,916.42
  5. Step 5: Solve for x
    x = 1,119,025,916.42/38,215.04
  6. Step 6: Final answer
    x = 29,282.34

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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.