Home / 19,520.68-26,931.54-11,132.32

Finding the Fourth Proportional to 19,520.68, 26,931.54 and 11,132.32

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Solution

The fourth proportional to 19,520.68, 26,931.54 and 11,132.32 is: 15,358.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,520.68 : 26,931.54 = 11,132.32 : x
  2. Step 2: Convert to fraction form
    19,520.68/26,931.54 = 11,132.32/x
  3. Step 3: Cross multiply
    19,520.68x = 26,931.54 × 11,132.32
  4. Step 4: Simplify right side
    19,520.68x = 299,810,521.37
  5. Step 5: Solve for x
    x = 299,810,521.37/19,520.68
  6. Step 6: Final answer
    x = 15,358.61

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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.