Home / 20,506.02-28,298.29-11,074.58

Finding the Fourth Proportional to 20,506.02, 28,298.29 and 11,074.58

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Solution

The fourth proportional to 20,506.02, 28,298.29 and 11,074.58 is: 15,282.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,506.02 : 28,298.29 = 11,074.58 : x
  2. Step 2: Convert to fraction form
    20,506.02/28,298.29 = 11,074.58/x
  3. Step 3: Cross multiply
    20,506.02x = 28,298.29 × 11,074.58
  4. Step 4: Simplify right side
    20,506.02x = 313,391,676.47
  5. Step 5: Solve for x
    x = 313,391,676.47/20,506.02
  6. Step 6: Final answer
    x = 15,282.91

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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.