Home / 27,820.65-38,392.37-15,073.80

Finding the Fourth Proportional to 27,820.65, 38,392.37 and 15,073.80

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Solution

The fourth proportional to 27,820.65, 38,392.37 and 15,073.80 is: 20,801.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,820.65 : 38,392.37 = 15,073.80 : x
  2. Step 2: Convert to fraction form
    27,820.65/38,392.37 = 15,073.80/x
  3. Step 3: Cross multiply
    27,820.65x = 38,392.37 × 15,073.80
  4. Step 4: Simplify right side
    27,820.65x = 578,718,831.54
  5. Step 5: Solve for x
    x = 578,718,831.54/27,820.65
  6. Step 6: Final answer
    x = 20,801.77

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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.