Home / 17,920.29-26,880.95-4,772.71

Finding the Fourth Proportional to 17,920.29, 26,880.95 and 4,772.71

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Solution

The fourth proportional to 17,920.29, 26,880.95 and 4,772.71 is: 7,159.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,920.29 : 26,880.95 = 4,772.71 : x
  2. Step 2: Convert to fraction form
    17,920.29/26,880.95 = 4,772.71/x
  3. Step 3: Cross multiply
    17,920.29x = 26,880.95 × 4,772.71
  4. Step 4: Simplify right side
    17,920.29x = 128,294,978.87
  5. Step 5: Solve for x
    x = 128,294,978.87/17,920.29
  6. Step 6: Final answer
    x = 7,159.20

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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.