Home / 47,270.60-70,848.30-20,947.40

Finding the Fourth Proportional to 47,270.60, 70,848.30 and 20,947.40

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Solution

The fourth proportional to 47,270.60, 70,848.30 and 20,947.40 is: 31,395.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,270.60 : 70,848.30 = 20,947.40 : x
  2. Step 2: Convert to fraction form
    47,270.60/70,848.30 = 20,947.40/x
  3. Step 3: Cross multiply
    47,270.60x = 70,848.30 × 20,947.40
  4. Step 4: Simplify right side
    47,270.60x = 1,484,087,679.42
  5. Step 5: Solve for x
    x = 1,484,087,679.42/47,270.60
  6. Step 6: Final answer
    x = 31,395.58

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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.