Home / 30,598.44-42,223.32-21,651.18

Finding the Fourth Proportional to 30,598.44, 42,223.32 and 21,651.18

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Solution

The fourth proportional to 30,598.44, 42,223.32 and 21,651.18 is: 29,876.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,598.44 : 42,223.32 = 21,651.18 : x
  2. Step 2: Convert to fraction form
    30,598.44/42,223.32 = 21,651.18/x
  3. Step 3: Cross multiply
    30,598.44x = 42,223.32 × 21,651.18
  4. Step 4: Simplify right side
    30,598.44x = 914,184,701.52
  5. Step 5: Solve for x
    x = 914,184,701.52/30,598.44
  6. Step 6: Final answer
    x = 29,876.84

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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.