Home / 28,090.51-42,119.46-13,299.30

Finding the Fourth Proportional to 28,090.51, 42,119.46 and 13,299.30

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Solution

The fourth proportional to 28,090.51, 42,119.46 and 13,299.30 is: 19,941.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,090.51 : 42,119.46 = 13,299.30 : x
  2. Step 2: Convert to fraction form
    28,090.51/42,119.46 = 13,299.30/x
  3. Step 3: Cross multiply
    28,090.51x = 42,119.46 × 13,299.30
  4. Step 4: Simplify right side
    28,090.51x = 560,159,334.38
  5. Step 5: Solve for x
    x = 560,159,334.38/28,090.51
  6. Step 6: Final answer
    x = 19,941.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.