Home / 47,084.05-70,635.79-13,805.20

Finding the Fourth Proportional to 47,084.05, 70,635.79 and 13,805.20

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Solution

The fourth proportional to 47,084.05, 70,635.79 and 13,805.20 is: 20,710.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,084.05 : 70,635.79 = 13,805.20 : x
  2. Step 2: Convert to fraction form
    47,084.05/70,635.79 = 13,805.20/x
  3. Step 3: Cross multiply
    47,084.05x = 70,635.79 × 13,805.20
  4. Step 4: Simplify right side
    47,084.05x = 975,141,208.11
  5. Step 5: Solve for x
    x = 975,141,208.11/47,084.05
  6. Step 6: Final answer
    x = 20,710.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.