Home / 19,618.88-29,428.32-13,801.52

Finding the Fourth Proportional to 19,618.88, 29,428.32 and 13,801.52

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Solution

The fourth proportional to 19,618.88, 29,428.32 and 13,801.52 is: 20,702.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,618.88 : 29,428.32 = 13,801.52 : x
  2. Step 2: Convert to fraction form
    19,618.88/29,428.32 = 13,801.52/x
  3. Step 3: Cross multiply
    19,618.88x = 29,428.32 × 13,801.52
  4. Step 4: Simplify right side
    19,618.88x = 406,155,547.05
  5. Step 5: Solve for x
    x = 406,155,547.05/19,618.88
  6. Step 6: Final answer
    x = 20,702.28

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1.5x scale

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.