Home / 27,019.28-37,280.04-15,839.12

Finding the Fourth Proportional to 27,019.28, 37,280.04 and 15,839.12

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Solution

The fourth proportional to 27,019.28, 37,280.04 and 15,839.12 is: 21,854.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,019.28 : 37,280.04 = 15,839.12 : x
  2. Step 2: Convert to fraction form
    27,019.28/37,280.04 = 15,839.12/x
  3. Step 3: Cross multiply
    27,019.28x = 37,280.04 × 15,839.12
  4. Step 4: Simplify right side
    27,019.28x = 590,483,027.16
  5. Step 5: Solve for x
    x = 590,483,027.16/27,019.28
  6. Step 6: Final answer
    x = 21,854.14

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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.