Home / 20,927.66-28,867.37-12,424.01

Finding the Fourth Proportional to 20,927.66, 28,867.37 and 12,424.01

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Solution

The fourth proportional to 20,927.66, 28,867.37 and 12,424.01 is: 17,137.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,927.66 : 28,867.37 = 12,424.01 : x
  2. Step 2: Convert to fraction form
    20,927.66/28,867.37 = 12,424.01/x
  3. Step 3: Cross multiply
    20,927.66x = 28,867.37 × 12,424.01
  4. Step 4: Simplify right side
    20,927.66x = 358,648,287.10
  5. Step 5: Solve for x
    x = 358,648,287.10/20,927.66
  6. Step 6: Final answer
    x = 17,137.53

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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.