Home / 48,451.72-72,676.86-13,390.60

Finding the Fourth Proportional to 48,451.72, 72,676.86 and 13,390.60

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Solution

The fourth proportional to 48,451.72, 72,676.86 and 13,390.60 is: 20,085.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,451.72 : 72,676.86 = 13,390.60 : x
  2. Step 2: Convert to fraction form
    48,451.72/72,676.86 = 13,390.60/x
  3. Step 3: Cross multiply
    48,451.72x = 72,676.86 × 13,390.60
  4. Step 4: Simplify right side
    48,451.72x = 973,186,761.52
  5. Step 5: Solve for x
    x = 973,186,761.52/48,451.72
  6. Step 6: Final answer
    x = 20,085.70

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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.