Home / 13,900.32-20,854.08-4,040.28

Finding the Fourth Proportional to 13,900.32, 20,854.08 and 4,040.28

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Solution

The fourth proportional to 13,900.32, 20,854.08 and 4,040.28 is: 6,061.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,900.32 : 20,854.08 = 4,040.28 : x
  2. Step 2: Convert to fraction form
    13,900.32/20,854.08 = 4,040.28/x
  3. Step 3: Cross multiply
    13,900.32x = 20,854.08 × 4,040.28
  4. Step 4: Simplify right side
    13,900.32x = 84,256,322.34
  5. Step 5: Solve for x
    x = 84,256,322.34/13,900.32
  6. Step 6: Final answer
    x = 6,061.47

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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.