Home / 55,948.12-83,921.36-13,828.21

Finding the Fourth Proportional to 55,948.12, 83,921.36 and 13,828.21

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Solution

The fourth proportional to 55,948.12, 83,921.36 and 13,828.21 is: 20,742.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,948.12 : 83,921.36 = 13,828.21 : x
  2. Step 2: Convert to fraction form
    55,948.12/83,921.36 = 13,828.21/x
  3. Step 3: Cross multiply
    55,948.12x = 83,921.36 × 13,828.21
  4. Step 4: Simplify right side
    55,948.12x = 1,160,482,224.43
  5. Step 5: Solve for x
    x = 1,160,482,224.43/55,948.12
  6. Step 6: Final answer
    x = 20,742.11

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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.