Home / 38,390.73-52,980.08-21,396.72

Finding the Fourth Proportional to 38,390.73, 52,980.08 and 21,396.72

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Solution

The fourth proportional to 38,390.73, 52,980.08 and 21,396.72 is: 29,527.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,390.73 : 52,980.08 = 21,396.72 : x
  2. Step 2: Convert to fraction form
    38,390.73/52,980.08 = 21,396.72/x
  3. Step 3: Cross multiply
    38,390.73x = 52,980.08 × 21,396.72
  4. Step 4: Simplify right side
    38,390.73x = 1,133,599,805.52
  5. Step 5: Solve for x
    x = 1,133,599,805.52/38,390.73
  6. Step 6: Final answer
    x = 29,527.95

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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.