Home / 32,318.78-48,477.81-12,611.18

Finding the Fourth Proportional to 32,318.78, 48,477.81 and 12,611.18

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Solution

The fourth proportional to 32,318.78, 48,477.81 and 12,611.18 is: 18,916.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,318.78 : 48,477.81 = 12,611.18 : x
  2. Step 2: Convert to fraction form
    32,318.78/48,477.81 = 12,611.18/x
  3. Step 3: Cross multiply
    32,318.78x = 48,477.81 × 12,611.18
  4. Step 4: Simplify right side
    32,318.78x = 611,362,387.92
  5. Step 5: Solve for x
    x = 611,362,387.92/32,318.78
  6. Step 6: Final answer
    x = 18,916.63

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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.