Home / 42,173.67-63,270.05-12,590.40

Finding the Fourth Proportional to 42,173.67, 63,270.05 and 12,590.40

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Solution

The fourth proportional to 42,173.67, 63,270.05 and 12,590.40 is: 18,888.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,173.67 : 63,270.05 = 12,590.40 : x
  2. Step 2: Convert to fraction form
    42,173.67/63,270.05 = 12,590.40/x
  3. Step 3: Cross multiply
    42,173.67x = 63,270.05 × 12,590.40
  4. Step 4: Simplify right side
    42,173.67x = 796,595,174.57
  5. Step 5: Solve for x
    x = 796,595,174.57/42,173.67
  6. Step 6: Final answer
    x = 18,888.45

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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.