Home / 17,139.60-25,709.40-14,547.60

Finding the Fourth Proportional to 17,139.60, 25,709.40 and 14,547.60

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Solution

The fourth proportional to 17,139.60, 25,709.40 and 14,547.60 is: 21,821.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,139.60 : 25,709.40 = 14,547.60 : x
  2. Step 2: Convert to fraction form
    17,139.60/25,709.40 = 14,547.60/x
  3. Step 3: Cross multiply
    17,139.60x = 25,709.40 × 14,547.60
  4. Step 4: Simplify right side
    17,139.60x = 374,010,067.44
  5. Step 5: Solve for x
    x = 374,010,067.44/17,139.60
  6. Step 6: Final answer
    x = 21,821.40

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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.