Home / 39,708.46-54,798.15-21,803.11

Finding the Fourth Proportional to 39,708.46, 54,798.15 and 21,803.11

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Solution

The fourth proportional to 39,708.46, 54,798.15 and 21,803.11 is: 30,088.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,708.46 : 54,798.15 = 21,803.11 : x
  2. Step 2: Convert to fraction form
    39,708.46/54,798.15 = 21,803.11/x
  3. Step 3: Cross multiply
    39,708.46x = 54,798.15 × 21,803.11
  4. Step 4: Simplify right side
    39,708.46x = 1,194,770,037.01
  5. Step 5: Solve for x
    x = 1,194,770,037.01/39,708.46
  6. Step 6: Final answer
    x = 30,088.55

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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.