Home / 38,318.52-57,477.78-12,045.72

Finding the Fourth Proportional to 38,318.52, 57,477.78 and 12,045.72

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Solution

The fourth proportional to 38,318.52, 57,477.78 and 12,045.72 is: 18,068.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,318.52 : 57,477.78 = 12,045.72 : x
  2. Step 2: Convert to fraction form
    38,318.52/57,477.78 = 12,045.72/x
  3. Step 3: Cross multiply
    38,318.52x = 57,477.78 × 12,045.72
  4. Step 4: Simplify right side
    38,318.52x = 692,361,244.10
  5. Step 5: Solve for x
    x = 692,361,244.10/38,318.52
  6. Step 6: Final answer
    x = 18,068.58

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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.