Home / 38,394.10-52,980.24-21,396.70

Finding the Fourth Proportional to 38,394.10, 52,980.24 and 21,396.70

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Solution

The fourth proportional to 38,394.10, 52,980.24 and 21,396.70 is: 29,525.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,394.10 : 52,980.24 = 21,396.70 : x
  2. Step 2: Convert to fraction form
    38,394.10/52,980.24 = 21,396.70/x
  3. Step 3: Cross multiply
    38,394.10x = 52,980.24 × 21,396.70
  4. Step 4: Simplify right side
    38,394.10x = 1,133,602,301.21
  5. Step 5: Solve for x
    x = 1,133,602,301.21/38,394.10
  6. Step 6: Final answer
    x = 29,525.43

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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.