Home / 38,903.18-53,685.68-21,907.35

Finding the Fourth Proportional to 38,903.18, 53,685.68 and 21,907.35

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Solution

The fourth proportional to 38,903.18, 53,685.68 and 21,907.35 is: 30,231.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,903.18 : 53,685.68 = 21,907.35 : x
  2. Step 2: Convert to fraction form
    38,903.18/53,685.68 = 21,907.35/x
  3. Step 3: Cross multiply
    38,903.18x = 53,685.68 × 21,907.35
  4. Step 4: Simplify right side
    38,903.18x = 1,176,110,872.21
  5. Step 5: Solve for x
    x = 1,176,110,872.21/38,903.18
  6. Step 6: Final answer
    x = 30,231.75

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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.