Home / 57,880.29-86,798.36-20,433.39

Finding the Fourth Proportional to 57,880.29, 86,798.36 and 20,433.39

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Solution

The fourth proportional to 57,880.29, 86,798.36 and 20,433.39 is: 30,642.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,880.29 : 86,798.36 = 20,433.39 : x
  2. Step 2: Convert to fraction form
    57,880.29/86,798.36 = 20,433.39/x
  3. Step 3: Cross multiply
    57,880.29x = 86,798.36 × 20,433.39
  4. Step 4: Simplify right side
    57,880.29x = 1,773,584,639.07
  5. Step 5: Solve for x
    x = 1,773,584,639.07/57,880.29
  6. Step 6: Final answer
    x = 30,642.29

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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.