Home / 28,261.95-42,390.86-11,617.47

Finding the Fourth Proportional to 28,261.95, 42,390.86 and 11,617.47

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Solution

The fourth proportional to 28,261.95, 42,390.86 and 11,617.47 is: 17,425.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,261.95 : 42,390.86 = 11,617.47 : x
  2. Step 2: Convert to fraction form
    28,261.95/42,390.86 = 11,617.47/x
  3. Step 3: Cross multiply
    28,261.95x = 42,390.86 × 11,617.47
  4. Step 4: Simplify right side
    28,261.95x = 492,474,486.24
  5. Step 5: Solve for x
    x = 492,474,486.24/28,261.95
  6. Step 6: Final answer
    x = 17,425.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.