Home / 20,498.03-28,289.96-11,547.26

Finding the Fourth Proportional to 20,498.03, 28,289.96 and 11,547.26

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Solution

The fourth proportional to 20,498.03, 28,289.96 and 11,547.26 is: 15,936.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,498.03 : 28,289.96 = 11,547.26 : x
  2. Step 2: Convert to fraction form
    20,498.03/28,289.96 = 11,547.26/x
  3. Step 3: Cross multiply
    20,498.03x = 28,289.96 × 11,547.26
  4. Step 4: Simplify right side
    20,498.03x = 326,671,324.32
  5. Step 5: Solve for x
    x = 326,671,324.32/20,498.03
  6. Step 6: Final answer
    x = 15,936.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.