Home / 42,171.95-63,271.63-12,590.03

Finding the Fourth Proportional to 42,171.95, 63,271.63 and 12,590.03

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Solution

The fourth proportional to 42,171.95, 63,271.63 and 12,590.03 is: 18,889.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,171.95 : 63,271.63 = 12,590.03 : x
  2. Step 2: Convert to fraction form
    42,171.95/63,271.63 = 12,590.03/x
  3. Step 3: Cross multiply
    42,171.95x = 63,271.63 × 12,590.03
  4. Step 4: Simplify right side
    42,171.95x = 796,591,719.85
  5. Step 5: Solve for x
    x = 796,591,719.85/42,171.95
  6. Step 6: Final answer
    x = 18,889.14

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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.