Home / 26,762.09-36,931.82-15,120.36

Finding the Fourth Proportional to 26,762.09, 36,931.82 and 15,120.36

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Solution

The fourth proportional to 26,762.09, 36,931.82 and 15,120.36 is: 20,866.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,762.09 : 36,931.82 = 15,120.36 : x
  2. Step 2: Convert to fraction form
    26,762.09/36,931.82 = 15,120.36/x
  3. Step 3: Cross multiply
    26,762.09x = 36,931.82 × 15,120.36
  4. Step 4: Simplify right side
    26,762.09x = 558,422,361.96
  5. Step 5: Solve for x
    x = 558,422,361.96/26,762.09
  6. Step 6: Final answer
    x = 20,866.17

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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.