Home / 28,151.55-38,848.83-15,576.39

Finding the Fourth Proportional to 28,151.55, 38,848.83 and 15,576.39

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Solution

The fourth proportional to 28,151.55, 38,848.83 and 15,576.39 is: 21,495.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,151.55 : 38,848.83 = 15,576.39 : x
  2. Step 2: Convert to fraction form
    28,151.55/38,848.83 = 15,576.39/x
  3. Step 3: Cross multiply
    28,151.55x = 38,848.83 × 15,576.39
  4. Step 4: Simplify right side
    28,151.55x = 605,124,527.12
  5. Step 5: Solve for x
    x = 605,124,527.12/28,151.55
  6. Step 6: Final answer
    x = 21,495.25

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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.