Home / 28,157.84-42,275.64-14,316.56

Finding the Fourth Proportional to 28,157.84, 42,275.64 and 14,316.56

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Solution

The fourth proportional to 28,157.84, 42,275.64 and 14,316.56 is: 21,494.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,157.84 : 42,275.64 = 14,316.56 : x
  2. Step 2: Convert to fraction form
    28,157.84/42,275.64 = 14,316.56/x
  3. Step 3: Cross multiply
    28,157.84x = 42,275.64 × 14,316.56
  4. Step 4: Simplify right side
    28,157.84x = 605,241,736.60
  5. Step 5: Solve for x
    x = 605,241,736.60/28,157.84
  6. Step 6: Final answer
    x = 21,494.61

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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.