Home / 30,629.04-42,136.83-29,316.84

Finding the Fourth Proportional to 30,629.04, 42,136.83 and 29,316.84

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Solution

The fourth proportional to 30,629.04, 42,136.83 and 29,316.84 is: 40,331.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,629.04 : 42,136.83 = 29,316.84 : x
  2. Step 2: Convert to fraction form
    30,629.04/42,136.83 = 29,316.84/x
  3. Step 3: Cross multiply
    30,629.04x = 42,136.83 × 29,316.84
  4. Step 4: Simplify right side
    30,629.04x = 1,235,318,703.22
  5. Step 5: Solve for x
    x = 1,235,318,703.22/30,629.04
  6. Step 6: Final answer
    x = 40,331.62

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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.