Home / 30,590.16-42,215.52-17,161.44

Finding the Fourth Proportional to 30,590.16, 42,215.52 and 17,161.44

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Solution

The fourth proportional to 30,590.16, 42,215.52 and 17,161.44 is: 23,683.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,590.16 : 42,215.52 = 17,161.44 : x
  2. Step 2: Convert to fraction form
    30,590.16/42,215.52 = 17,161.44/x
  3. Step 3: Cross multiply
    30,590.16x = 42,215.52 × 17,161.44
  4. Step 4: Simplify right side
    30,590.16x = 724,479,113.55
  5. Step 5: Solve for x
    x = 724,479,113.55/30,590.16
  6. Step 6: Final answer
    x = 23,683.40

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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.