Home / 38,433.14-53,037.80-21,438.48

Finding the Fourth Proportional to 38,433.14, 53,037.80 and 21,438.48

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Solution

The fourth proportional to 38,433.14, 53,037.80 and 21,438.48 is: 29,585.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,433.14 : 53,037.80 = 21,438.48 : x
  2. Step 2: Convert to fraction form
    38,433.14/53,037.80 = 21,438.48/x
  3. Step 3: Cross multiply
    38,433.14x = 53,037.80 × 21,438.48
  4. Step 4: Simplify right side
    38,433.14x = 1,137,049,868.14
  5. Step 5: Solve for x
    x = 1,137,049,868.14/38,433.14
  6. Step 6: Final answer
    x = 29,585.14

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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.