Home / 26,789.40-36,971.79-15,460.74

Finding the Fourth Proportional to 26,789.40, 36,971.79 and 15,460.74

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Solution

The fourth proportional to 26,789.40, 36,971.79 and 15,460.74 is: 21,337.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,789.40 : 36,971.79 = 15,460.74 : x
  2. Step 2: Convert to fraction form
    26,789.40/36,971.79 = 15,460.74/x
  3. Step 3: Cross multiply
    26,789.40x = 36,971.79 × 15,460.74
  4. Step 4: Simplify right side
    26,789.40x = 571,611,261.51
  5. Step 5: Solve for x
    x = 571,611,261.51/26,789.40
  6. Step 6: Final answer
    x = 21,337.22

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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.