Home / 26,915.25-37,143.05-15,139.25

Finding the Fourth Proportional to 26,915.25, 37,143.05 and 15,139.25

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Solution

The fourth proportional to 26,915.25, 37,143.05 and 15,139.25 is: 20,892.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,915.25 : 37,143.05 = 15,139.25 : x
  2. Step 2: Convert to fraction form
    26,915.25/37,143.05 = 15,139.25/x
  3. Step 3: Cross multiply
    26,915.25x = 37,143.05 × 15,139.25
  4. Step 4: Simplify right side
    26,915.25x = 562,317,919.71
  5. Step 5: Solve for x
    x = 562,317,919.71/26,915.25
  6. Step 6: Final answer
    x = 20,892.17

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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.