Home / 20,465.42-30,702.62-18,398.71

Finding the Fourth Proportional to 20,465.42, 30,702.62 and 18,398.71

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Solution

The fourth proportional to 20,465.42, 30,702.62 and 18,398.71 is: 27,602.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,465.42 : 30,702.62 = 18,398.71 : x
  2. Step 2: Convert to fraction form
    20,465.42/30,702.62 = 18,398.71/x
  3. Step 3: Cross multiply
    20,465.42x = 30,702.62 × 18,398.71
  4. Step 4: Simplify right side
    20,465.42x = 564,888,461.55
  5. Step 5: Solve for x
    x = 564,888,461.55/20,465.42
  6. Step 6: Final answer
    x = 27,602.09

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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.