Home / 55,428.64-83,132.57-17,989.03

Finding the Fourth Proportional to 55,428.64, 83,132.57 and 17,989.03

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Solution

The fourth proportional to 55,428.64, 83,132.57 and 17,989.03 is: 26,980.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,428.64 : 83,132.57 = 17,989.03 : x
  2. Step 2: Convert to fraction form
    55,428.64/83,132.57 = 17,989.03/x
  3. Step 3: Cross multiply
    55,428.64x = 83,132.57 × 17,989.03
  4. Step 4: Simplify right side
    55,428.64x = 1,495,474,295.71
  5. Step 5: Solve for x
    x = 1,495,474,295.71/55,428.64
  6. Step 6: Final answer
    x = 26,980.17

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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.