Home / 20,826.35-28,740.27-11,266.23

Finding the Fourth Proportional to 20,826.35, 28,740.27 and 11,266.23

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Solution

The fourth proportional to 20,826.35, 28,740.27 and 11,266.23 is: 15,547.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,826.35 : 28,740.27 = 11,266.23 : x
  2. Step 2: Convert to fraction form
    20,826.35/28,740.27 = 11,266.23/x
  3. Step 3: Cross multiply
    20,826.35x = 28,740.27 × 11,266.23
  4. Step 4: Simplify right side
    20,826.35x = 323,794,492.08
  5. Step 5: Solve for x
    x = 323,794,492.08/20,826.35
  6. Step 6: Final answer
    x = 15,547.35

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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.