Home / 27,931.68-38,544.48-15,356.16

Finding the Fourth Proportional to 27,931.68, 38,544.48 and 15,356.16

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Solution

The fourth proportional to 27,931.68, 38,544.48 and 15,356.16 is: 21,190.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,931.68 : 38,544.48 = 15,356.16 : x
  2. Step 2: Convert to fraction form
    27,931.68/38,544.48 = 15,356.16/x
  3. Step 3: Cross multiply
    27,931.68x = 38,544.48 × 15,356.16
  4. Step 4: Simplify right side
    27,931.68x = 591,895,202.00
  5. Step 5: Solve for x
    x = 591,895,202.00/27,931.68
  6. Step 6: Final answer
    x = 21,190.82

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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.