Home / 47,146.83-65,064.39-28,280.31

Finding the Fourth Proportional to 47,146.83, 65,064.39 and 28,280.31

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Solution

The fourth proportional to 47,146.83, 65,064.39 and 28,280.31 is: 39,027.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,146.83 : 65,064.39 = 28,280.31 : x
  2. Step 2: Convert to fraction form
    47,146.83/65,064.39 = 28,280.31/x
  3. Step 3: Cross multiply
    47,146.83x = 65,064.39 × 28,280.31
  4. Step 4: Simplify right side
    47,146.83x = 1,840,041,119.16
  5. Step 5: Solve for x
    x = 1,840,041,119.16/47,146.83
  6. Step 6: Final answer
    x = 39,027.89

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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.