Home / 26,398.62-36,430.10-15,788.25

Finding the Fourth Proportional to 26,398.62, 36,430.10 and 15,788.25

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Solution

The fourth proportional to 26,398.62, 36,430.10 and 15,788.25 is: 21,787.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,398.62 : 36,430.10 = 15,788.25 : x
  2. Step 2: Convert to fraction form
    26,398.62/36,430.10 = 15,788.25/x
  3. Step 3: Cross multiply
    26,398.62x = 36,430.10 × 15,788.25
  4. Step 4: Simplify right side
    26,398.62x = 575,167,462.19
  5. Step 5: Solve for x
    x = 575,167,462.19/26,398.62
  6. Step 6: Final answer
    x = 21,787.79

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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.