Home / 47,415.72-65,428.40-26,189.68

Finding the Fourth Proportional to 47,415.72, 65,428.40 and 26,189.68

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Solution

The fourth proportional to 47,415.72, 65,428.40 and 26,189.68 is: 36,138.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,415.72 : 65,428.40 = 26,189.68 : x
  2. Step 2: Convert to fraction form
    47,415.72/65,428.40 = 26,189.68/x
  3. Step 3: Cross multiply
    47,415.72x = 65,428.40 × 26,189.68
  4. Step 4: Simplify right side
    47,415.72x = 1,713,548,858.91
  5. Step 5: Solve for x
    x = 1,713,548,858.91/47,415.72
  6. Step 6: Final answer
    x = 36,138.83

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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.