Home / 30,448.20-42,005.88-19,114.04

Finding the Fourth Proportional to 30,448.20, 42,005.88 and 19,114.04

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Solution

The fourth proportional to 30,448.20, 42,005.88 and 19,114.04 is: 26,369.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,448.20 : 42,005.88 = 19,114.04 : x
  2. Step 2: Convert to fraction form
    30,448.20/42,005.88 = 19,114.04/x
  3. Step 3: Cross multiply
    30,448.20x = 42,005.88 × 19,114.04
  4. Step 4: Simplify right side
    30,448.20x = 802,902,070.56
  5. Step 5: Solve for x
    x = 802,902,070.56/30,448.20
  6. Step 6: Final answer
    x = 26,369.44

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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.