Home / 19,258.78-26,493.87-15,714.22

Finding the Fourth Proportional to 19,258.78, 26,493.87 and 15,714.22

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Solution

The fourth proportional to 19,258.78, 26,493.87 and 15,714.22 is: 21,617.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,258.78 : 26,493.87 = 15,714.22 : x
  2. Step 2: Convert to fraction form
    19,258.78/26,493.87 = 15,714.22/x
  3. Step 3: Cross multiply
    19,258.78x = 26,493.87 × 15,714.22
  4. Step 4: Simplify right side
    19,258.78x = 416,330,501.83
  5. Step 5: Solve for x
    x = 416,330,501.83/19,258.78
  6. Step 6: Final answer
    x = 21,617.70

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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.