Home / 43,393.18-65,090.31-13,810.90

Finding the Fourth Proportional to 43,393.18, 65,090.31 and 13,810.90

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Solution

The fourth proportional to 43,393.18, 65,090.31 and 13,810.90 is: 20,716.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,393.18 : 65,090.31 = 13,810.90 : x
  2. Step 2: Convert to fraction form
    43,393.18/65,090.31 = 13,810.90/x
  3. Step 3: Cross multiply
    43,393.18x = 65,090.31 × 13,810.90
  4. Step 4: Simplify right side
    43,393.18x = 898,955,762.38
  5. Step 5: Solve for x
    x = 898,955,762.38/43,393.18
  6. Step 6: Final answer
    x = 20,716.52

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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.