Home / 47,261.20-70,891.79-13,978.67

Finding the Fourth Proportional to 47,261.20, 70,891.79 and 13,978.67

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Solution

The fourth proportional to 47,261.20, 70,891.79 and 13,978.67 is: 20,968.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,261.20 : 70,891.79 = 13,978.67 : x
  2. Step 2: Convert to fraction form
    47,261.20/70,891.79 = 13,978.67/x
  3. Step 3: Cross multiply
    47,261.20x = 70,891.79 × 13,978.67
  4. Step 4: Simplify right side
    47,261.20x = 990,972,938.12
  5. Step 5: Solve for x
    x = 990,972,938.12/47,261.20
  6. Step 6: Final answer
    x = 20,968.00

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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.