Home / 45,417.38-68,128.41-13,824.95

Finding the Fourth Proportional to 45,417.38, 68,128.41 and 13,824.95

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Solution

The fourth proportional to 45,417.38, 68,128.41 and 13,824.95 is: 20,738.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,417.38 : 68,128.41 = 13,824.95 : x
  2. Step 2: Convert to fraction form
    45,417.38/68,128.41 = 13,824.95/x
  3. Step 3: Cross multiply
    45,417.38x = 68,128.41 × 13,824.95
  4. Step 4: Simplify right side
    45,417.38x = 941,871,521.19
  5. Step 5: Solve for x
    x = 941,871,521.19/45,417.38
  6. Step 6: Final answer
    x = 20,738.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.