Home / 27,931.84-38,546.04-15,356.68

Finding the Fourth Proportional to 27,931.84, 38,546.04 and 15,356.68

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Solution

The fourth proportional to 27,931.84, 38,546.04 and 15,356.68 is: 21,192.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,931.84 : 38,546.04 = 15,356.68 : x
  2. Step 2: Convert to fraction form
    27,931.84/38,546.04 = 15,356.68/x
  3. Step 3: Cross multiply
    27,931.84x = 38,546.04 × 15,356.68
  4. Step 4: Simplify right side
    27,931.84x = 591,939,201.55
  5. Step 5: Solve for x
    x = 591,939,201.55/27,931.84
  6. Step 6: Final answer
    x = 21,192.27

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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.