Home / 27,555.21-38,027.75-14,979.69

Finding the Fourth Proportional to 27,555.21, 38,027.75 and 14,979.69

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Solution

The fourth proportional to 27,555.21, 38,027.75 and 14,979.69 is: 20,672.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,555.21 : 38,027.75 = 14,979.69 : x
  2. Step 2: Convert to fraction form
    27,555.21/38,027.75 = 14,979.69/x
  3. Step 3: Cross multiply
    27,555.21x = 38,027.75 × 14,979.69
  4. Step 4: Simplify right side
    27,555.21x = 569,643,831.50
  5. Step 5: Solve for x
    x = 569,643,831.50/27,555.21
  6. Step 6: Final answer
    x = 20,672.82

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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.