Home / 19,026.72-26,246.16-13,428

Finding the Fourth Proportional to 19,026.72, 26,246.16 and 13,428

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Solution

The fourth proportional to 19,026.72, 26,246.16 and 13,428 is: 18,523.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,026.72 : 26,246.16 = 13,428 : x
  2. Step 2: Convert to fraction form
    19,026.72/26,246.16 = 13,428/x
  3. Step 3: Cross multiply
    19,026.72x = 26,246.16 × 13,428
  4. Step 4: Simplify right side
    19,026.72x = 352,433,436.48
  5. Step 5: Solve for x
    x = 352,433,436.48/19,026.72
  6. Step 6: Final answer
    x = 18,523.08

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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.