Home / 58,297.31-87,448.70-18,857.50

Finding the Fourth Proportional to 58,297.31, 87,448.70 and 18,857.50

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Solution

The fourth proportional to 58,297.31, 87,448.70 and 18,857.50 is: 28,287.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,297.31 : 87,448.70 = 18,857.50 : x
  2. Step 2: Convert to fraction form
    58,297.31/87,448.70 = 18,857.50/x
  3. Step 3: Cross multiply
    58,297.31x = 87,448.70 × 18,857.50
  4. Step 4: Simplify right side
    58,297.31x = 1,649,063,860.25
  5. Step 5: Solve for x
    x = 1,649,063,860.25/58,297.31
  6. Step 6: Final answer
    x = 28,287.13

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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.