Home / 20,495.63-28,279.10-11,541.35

Finding the Fourth Proportional to 20,495.63, 28,279.10 and 11,541.35

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Solution

The fourth proportional to 20,495.63, 28,279.10 and 11,541.35 is: 15,924.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,495.63 : 28,279.10 = 11,541.35 : x
  2. Step 2: Convert to fraction form
    20,495.63/28,279.10 = 11,541.35/x
  3. Step 3: Cross multiply
    20,495.63x = 28,279.10 × 11,541.35
  4. Step 4: Simplify right side
    20,495.63x = 326,378,878.24
  5. Step 5: Solve for x
    x = 326,378,878.24/20,495.63
  6. Step 6: Final answer
    x = 15,924.32

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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.