Home / 27,818.24-38,388.99-15,722.66

Finding the Fourth Proportional to 27,818.24, 38,388.99 and 15,722.66

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Solution

The fourth proportional to 27,818.24, 38,388.99 and 15,722.66 is: 21,697.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,818.24 : 38,388.99 = 15,722.66 : x
  2. Step 2: Convert to fraction form
    27,818.24/38,388.99 = 15,722.66/x
  3. Step 3: Cross multiply
    27,818.24x = 38,388.99 × 15,722.66
  4. Step 4: Simplify right side
    27,818.24x = 603,577,037.51
  5. Step 5: Solve for x
    x = 603,577,037.51/27,818.24
  6. Step 6: Final answer
    x = 21,697.17

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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.