Home / 29,290.16-40,420.22-15,861.62

Finding the Fourth Proportional to 29,290.16, 40,420.22 and 15,861.62

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Solution

The fourth proportional to 29,290.16, 40,420.22 and 15,861.62 is: 21,888.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,290.16 : 40,420.22 = 15,861.62 : x
  2. Step 2: Convert to fraction form
    29,290.16/40,420.22 = 15,861.62/x
  3. Step 3: Cross multiply
    29,290.16x = 40,420.22 × 15,861.62
  4. Step 4: Simplify right side
    29,290.16x = 641,130,169.96
  5. Step 5: Solve for x
    x = 641,130,169.96/29,290.16
  6. Step 6: Final answer
    x = 21,888.93

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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.