Home / 28,040.40-38,696.04-15,466.32

Finding the Fourth Proportional to 28,040.40, 38,696.04 and 15,466.32

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Solution

The fourth proportional to 28,040.40, 38,696.04 and 15,466.32 is: 21,343.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,040.40 : 38,696.04 = 15,466.32 : x
  2. Step 2: Convert to fraction form
    28,040.40/38,696.04 = 15,466.32/x
  3. Step 3: Cross multiply
    28,040.40x = 38,696.04 × 15,466.32
  4. Step 4: Simplify right side
    28,040.40x = 598,485,337.37
  5. Step 5: Solve for x
    x = 598,485,337.37/28,040.40
  6. Step 6: Final answer
    x = 21,343.68

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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.