Home / 47,219.90-70,846.25-20,943.09

Finding the Fourth Proportional to 47,219.90, 70,846.25 and 20,943.09

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Solution

The fourth proportional to 47,219.90, 70,846.25 and 20,943.09 is: 31,421.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,219.90 : 70,846.25 = 20,943.09 : x
  2. Step 2: Convert to fraction form
    47,219.90/70,846.25 = 20,943.09/x
  3. Step 3: Cross multiply
    47,219.90x = 70,846.25 × 20,943.09
  4. Step 4: Simplify right side
    47,219.90x = 1,483,739,285.20
  5. Step 5: Solve for x
    x = 1,483,739,285.20/47,219.90
  6. Step 6: Final answer
    x = 31,421.91

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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.