Home / 58,438-87,613.24-18,971.56

Finding the Fourth Proportional to 58,438, 87,613.24 and 18,971.56

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Solution

The fourth proportional to 58,438, 87,613.24 and 18,971.56 is: 28,443.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,438 : 87,613.24 = 18,971.56 : x
  2. Step 2: Convert to fraction form
    58,438/87,613.24 = 18,971.56/x
  3. Step 3: Cross multiply
    58,438x = 87,613.24 × 18,971.56
  4. Step 4: Simplify right side
    58,438x = 1,662,159,839.45
  5. Step 5: Solve for x
    x = 1,662,159,839.45/58,438
  6. Step 6: Final answer
    x = 28,443.13

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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.