Home / 30,678.04-42,349.96-23,127.44

Finding the Fourth Proportional to 30,678.04, 42,349.96 and 23,127.44

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Solution

The fourth proportional to 30,678.04, 42,349.96 and 23,127.44 is: 31,926.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,678.04 : 42,349.96 = 23,127.44 : x
  2. Step 2: Convert to fraction form
    30,678.04/42,349.96 = 23,127.44/x
  3. Step 3: Cross multiply
    30,678.04x = 42,349.96 × 23,127.44
  4. Step 4: Simplify right side
    30,678.04x = 979,446,158.90
  5. Step 5: Solve for x
    x = 979,446,158.90/30,678.04
  6. Step 6: Final answer
    x = 31,926.62

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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.