Home / 47,555.10-65,621.62-28,431.15

Finding the Fourth Proportional to 47,555.10, 65,621.62 and 28,431.15

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Solution

The fourth proportional to 47,555.10, 65,621.62 and 28,431.15 is: 39,232.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,555.10 : 65,621.62 = 28,431.15 : x
  2. Step 2: Convert to fraction form
    47,555.10/65,621.62 = 28,431.15/x
  3. Step 3: Cross multiply
    47,555.10x = 65,621.62 × 28,431.15
  4. Step 4: Simplify right side
    47,555.10x = 1,865,698,200.08
  5. Step 5: Solve for x
    x = 1,865,698,200.08/47,555.10
  6. Step 6: Final answer
    x = 39,232.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.