Home / 28,114.02-38,796.84-15,538.50

Finding the Fourth Proportional to 28,114.02, 38,796.84 and 15,538.50

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Solution

The fourth proportional to 28,114.02, 38,796.84 and 15,538.50 is: 21,442.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,114.02 : 38,796.84 = 15,538.50 : x
  2. Step 2: Convert to fraction form
    28,114.02/38,796.84 = 15,538.50/x
  3. Step 3: Cross multiply
    28,114.02x = 38,796.84 × 15,538.50
  4. Step 4: Simplify right side
    28,114.02x = 602,844,698.34
  5. Step 5: Solve for x
    x = 602,844,698.34/28,114.02
  6. Step 6: Final answer
    x = 21,442.85

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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.