Home / 28,236.79-42,368.82-19,969.93

Finding the Fourth Proportional to 28,236.79, 42,368.82 and 19,969.93

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Solution

The fourth proportional to 28,236.79, 42,368.82 and 19,969.93 is: 29,964.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,236.79 : 42,368.82 = 19,969.93 : x
  2. Step 2: Convert to fraction form
    28,236.79/42,368.82 = 19,969.93/x
  3. Step 3: Cross multiply
    28,236.79x = 42,368.82 × 19,969.93
  4. Step 4: Simplify right side
    28,236.79x = 846,102,369.58
  5. Step 5: Solve for x
    x = 846,102,369.58/28,236.79
  6. Step 6: Final answer
    x = 29,964.54

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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.