Home / 47,276.24-70,920.84-20,980.40

Finding the Fourth Proportional to 47,276.24, 70,920.84 and 20,980.40

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Solution

The fourth proportional to 47,276.24, 70,920.84 and 20,980.40 is: 31,473.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,276.24 : 70,920.84 = 20,980.40 : x
  2. Step 2: Convert to fraction form
    47,276.24/70,920.84 = 20,980.40/x
  3. Step 3: Cross multiply
    47,276.24x = 70,920.84 × 20,980.40
  4. Step 4: Simplify right side
    47,276.24x = 1,487,947,591.54
  5. Step 5: Solve for x
    x = 1,487,947,591.54/47,276.24
  6. Step 6: Final answer
    x = 31,473.48

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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.