Home / 28,152.73-38,852-15,577.48

Finding the Fourth Proportional to 28,152.73, 38,852 and 15,577.48

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Solution

The fourth proportional to 28,152.73, 38,852 and 15,577.48 is: 21,497.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,152.73 : 38,852 = 15,577.48 : x
  2. Step 2: Convert to fraction form
    28,152.73/38,852 = 15,577.48/x
  3. Step 3: Cross multiply
    28,152.73x = 38,852 × 15,577.48
  4. Step 4: Simplify right side
    28,152.73x = 605,216,252.96
  5. Step 5: Solve for x
    x = 605,216,252.96/28,152.73
  6. Step 6: Final answer
    x = 21,497.60

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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.