Home / 45,588.68-68,374.32-19,311.90

Finding the Fourth Proportional to 45,588.68, 68,374.32 and 19,311.90

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Solution

The fourth proportional to 45,588.68, 68,374.32 and 19,311.90 is: 28,964.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,588.68 : 68,374.32 = 19,311.90 : x
  2. Step 2: Convert to fraction form
    45,588.68/68,374.32 = 19,311.90/x
  3. Step 3: Cross multiply
    45,588.68x = 68,374.32 × 19,311.90
  4. Step 4: Simplify right side
    45,588.68x = 1,320,438,030.41
  5. Step 5: Solve for x
    x = 1,320,438,030.41/45,588.68
  6. Step 6: Final answer
    x = 28,964.16

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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.