Home / 30,420.77-42,195.43-29,611.58

Finding the Fourth Proportional to 30,420.77, 42,195.43 and 29,611.58

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Solution

The fourth proportional to 30,420.77, 42,195.43 and 29,611.58 is: 41,073.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,420.77 : 42,195.43 = 29,611.58 : x
  2. Step 2: Convert to fraction form
    30,420.77/42,195.43 = 29,611.58/x
  3. Step 3: Cross multiply
    30,420.77x = 42,195.43 × 29,611.58
  4. Step 4: Simplify right side
    30,420.77x = 1,249,473,177.12
  5. Step 5: Solve for x
    x = 1,249,473,177.12/30,420.77
  6. Step 6: Final answer
    x = 41,073.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.