Home / 47,155.23-70,757.15-20,878.56

Finding the Fourth Proportional to 47,155.23, 70,757.15 and 20,878.56

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Solution

The fourth proportional to 47,155.23, 70,757.15 and 20,878.56 is: 31,328.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,155.23 : 70,757.15 = 20,878.56 : x
  2. Step 2: Convert to fraction form
    47,155.23/70,757.15 = 20,878.56/x
  3. Step 3: Cross multiply
    47,155.23x = 70,757.15 × 20,878.56
  4. Step 4: Simplify right side
    47,155.23x = 1,477,307,297.31
  5. Step 5: Solve for x
    x = 1,477,307,297.31/47,155.23
  6. Step 6: Final answer
    x = 31,328.60

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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.