Home / 39,284.72-58,888.58-12,971.88

Finding the Fourth Proportional to 39,284.72, 58,888.58 and 12,971.88

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Solution

The fourth proportional to 39,284.72, 58,888.58 and 12,971.88 is: 19,445.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,284.72 : 58,888.58 = 12,971.88 : x
  2. Step 2: Convert to fraction form
    39,284.72/58,888.58 = 12,971.88/x
  3. Step 3: Cross multiply
    39,284.72x = 58,888.58 × 12,971.88
  4. Step 4: Simplify right side
    39,284.72x = 763,895,593.13
  5. Step 5: Solve for x
    x = 763,895,593.13/39,284.72
  6. Step 6: Final answer
    x = 19,445.11

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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.