Home / 30,869.27-42,583.93-19,519.64

Finding the Fourth Proportional to 30,869.27, 42,583.93 and 19,519.64

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Solution

The fourth proportional to 30,869.27, 42,583.93 and 19,519.64 is: 26,927.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,869.27 : 42,583.93 = 19,519.64 : x
  2. Step 2: Convert to fraction form
    30,869.27/42,583.93 = 19,519.64/x
  3. Step 3: Cross multiply
    30,869.27x = 42,583.93 × 19,519.64
  4. Step 4: Simplify right side
    30,869.27x = 831,222,983.39
  5. Step 5: Solve for x
    x = 831,222,983.39/30,869.27
  6. Step 6: Final answer
    x = 26,927.20

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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.