Home / 39,021.02-53,849.14-21,116.02

Finding the Fourth Proportional to 39,021.02, 53,849.14 and 21,116.02

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Solution

The fourth proportional to 39,021.02, 53,849.14 and 21,116.02 is: 29,140.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,021.02 : 53,849.14 = 21,116.02 : x
  2. Step 2: Convert to fraction form
    39,021.02/53,849.14 = 21,116.02/x
  3. Step 3: Cross multiply
    39,021.02x = 53,849.14 × 21,116.02
  4. Step 4: Simplify right side
    39,021.02x = 1,137,079,368.41
  5. Step 5: Solve for x
    x = 1,137,079,368.41/39,021.02
  6. Step 6: Final answer
    x = 29,140.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.