Home / 23,147.12-31,943.63-14,189.47

Finding the Fourth Proportional to 23,147.12, 31,943.63 and 14,189.47

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Solution

The fourth proportional to 23,147.12, 31,943.63 and 14,189.47 is: 19,581.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,147.12 : 31,943.63 = 14,189.47 : x
  2. Step 2: Convert to fraction form
    23,147.12/31,943.63 = 14,189.47/x
  3. Step 3: Cross multiply
    23,147.12x = 31,943.63 × 14,189.47
  4. Step 4: Simplify right side
    23,147.12x = 453,263,135.19
  5. Step 5: Solve for x
    x = 453,263,135.19/23,147.12
  6. Step 6: Final answer
    x = 19,581.84

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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.