Home / 30,451.96-42,006.18-17,874.28

Finding the Fourth Proportional to 30,451.96, 42,006.18 and 17,874.28

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Solution

The fourth proportional to 30,451.96, 42,006.18 and 17,874.28 is: 24,656.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,451.96 : 42,006.18 = 17,874.28 : x
  2. Step 2: Convert to fraction form
    30,451.96/42,006.18 = 17,874.28/x
  3. Step 3: Cross multiply
    30,451.96x = 42,006.18 × 17,874.28
  4. Step 4: Simplify right side
    30,451.96x = 750,830,223.05
  5. Step 5: Solve for x
    x = 750,830,223.05/30,451.96
  6. Step 6: Final answer
    x = 24,656.22

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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.