Home / 28,233.36-38,960.28-15,657.84

Finding the Fourth Proportional to 28,233.36, 38,960.28 and 15,657.84

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Solution

The fourth proportional to 28,233.36, 38,960.28 and 15,657.84 is: 21,606.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,233.36 : 38,960.28 = 15,657.84 : x
  2. Step 2: Convert to fraction form
    28,233.36/38,960.28 = 15,657.84/x
  3. Step 3: Cross multiply
    28,233.36x = 38,960.28 × 15,657.84
  4. Step 4: Simplify right side
    28,233.36x = 610,033,830.60
  5. Step 5: Solve for x
    x = 610,033,830.60/28,233.36
  6. Step 6: Final answer
    x = 21,606.84

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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.