Home / 48,421.78-72,636.86-13,361.45

Finding the Fourth Proportional to 48,421.78, 72,636.86 and 13,361.45

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Solution

The fourth proportional to 48,421.78, 72,636.86 and 13,361.45 is: 20,043.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,421.78 : 72,636.86 = 13,361.45 : x
  2. Step 2: Convert to fraction form
    48,421.78/72,636.86 = 13,361.45/x
  3. Step 3: Cross multiply
    48,421.78x = 72,636.86 × 13,361.45
  4. Step 4: Simplify right side
    48,421.78x = 970,533,443.27
  5. Step 5: Solve for x
    x = 970,533,443.27/48,421.78
  6. Step 6: Final answer
    x = 20,043.33

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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.