Home / 48,618.31-72,928.05-13,555.84

Finding the Fourth Proportional to 48,618.31, 72,928.05 and 13,555.84

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Solution

The fourth proportional to 48,618.31, 72,928.05 and 13,555.84 is: 20,333.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,618.31 : 72,928.05 = 13,555.84 : x
  2. Step 2: Convert to fraction form
    48,618.31/72,928.05 = 13,555.84/x
  3. Step 3: Cross multiply
    48,618.31x = 72,928.05 × 13,555.84
  4. Step 4: Simplify right side
    48,618.31x = 988,600,977.31
  5. Step 5: Solve for x
    x = 988,600,977.31/48,618.31
  6. Step 6: Final answer
    x = 20,333.92

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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.