Home / 19,438.39-29,152.72-5,587.39

Finding the Fourth Proportional to 19,438.39, 29,152.72 and 5,587.39

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Solution

The fourth proportional to 19,438.39, 29,152.72 and 5,587.39 is: 8,379.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,438.39 : 29,152.72 = 5,587.39 : x
  2. Step 2: Convert to fraction form
    19,438.39/29,152.72 = 5,587.39/x
  3. Step 3: Cross multiply
    19,438.39x = 29,152.72 × 5,587.39
  4. Step 4: Simplify right side
    19,438.39x = 162,887,616.20
  5. Step 5: Solve for x
    x = 162,887,616.20/19,438.39
  6. Step 6: Final answer
    x = 8,379.69

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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.