Home / 55,428.24-83,153.20-20,368.16

Finding the Fourth Proportional to 55,428.24, 83,153.20 and 20,368.16

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Solution

The fourth proportional to 55,428.24, 83,153.20 and 20,368.16 is: 30,556.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,428.24 : 83,153.20 = 20,368.16 : x
  2. Step 2: Convert to fraction form
    55,428.24/83,153.20 = 20,368.16/x
  3. Step 3: Cross multiply
    55,428.24x = 83,153.20 × 20,368.16
  4. Step 4: Simplify right side
    55,428.24x = 1,693,677,682.11
  5. Step 5: Solve for x
    x = 1,693,677,682.11/55,428.24
  6. Step 6: Final answer
    x = 30,556.22

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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.