Home / 28,236.52-42,298.31-16,985.66

Finding the Fourth Proportional to 28,236.52, 42,298.31 and 16,985.66

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Solution

The fourth proportional to 28,236.52, 42,298.31 and 16,985.66 is: 25,444.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,236.52 : 42,298.31 = 16,985.66 : x
  2. Step 2: Convert to fraction form
    28,236.52/42,298.31 = 16,985.66/x
  3. Step 3: Cross multiply
    28,236.52x = 42,298.31 × 16,985.66
  4. Step 4: Simplify right side
    28,236.52x = 718,464,415.81
  5. Step 5: Solve for x
    x = 718,464,415.81/28,236.52
  6. Step 6: Final answer
    x = 25,444.51

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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.