Home / 28,035.04-38,687.56-15,459.80

Finding the Fourth Proportional to 28,035.04, 38,687.56 and 15,459.80

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Solution

The fourth proportional to 28,035.04, 38,687.56 and 15,459.80 is: 21,334.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,035.04 : 38,687.56 = 15,459.80 : x
  2. Step 2: Convert to fraction form
    28,035.04/38,687.56 = 15,459.80/x
  3. Step 3: Cross multiply
    28,035.04x = 38,687.56 × 15,459.80
  4. Step 4: Simplify right side
    28,035.04x = 598,101,940.09
  5. Step 5: Solve for x
    x = 598,101,940.09/28,035.04
  6. Step 6: Final answer
    x = 21,334.09

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1.5x scale

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.