Home / 55,948.31-83,921.64-13,828.40

Finding the Fourth Proportional to 55,948.31, 83,921.64 and 13,828.40

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Solution

The fourth proportional to 55,948.31, 83,921.64 and 13,828.40 is: 20,742.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,948.31 : 83,921.64 = 13,828.40 : x
  2. Step 2: Convert to fraction form
    55,948.31/83,921.64 = 13,828.40/x
  3. Step 3: Cross multiply
    55,948.31x = 83,921.64 × 13,828.40
  4. Step 4: Simplify right side
    55,948.31x = 1,160,501,927.60
  5. Step 5: Solve for x
    x = 1,160,501,927.60/55,948.31
  6. Step 6: Final answer
    x = 20,742.39

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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.