Home / 18,825.96-28,259.37-14,159.28

Finding the Fourth Proportional to 18,825.96, 28,259.37 and 14,159.28

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Solution

The fourth proportional to 18,825.96, 28,259.37 and 14,159.28 is: 21,254.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,825.96 : 28,259.37 = 14,159.28 : x
  2. Step 2: Convert to fraction form
    18,825.96/28,259.37 = 14,159.28/x
  3. Step 3: Cross multiply
    18,825.96x = 28,259.37 × 14,159.28
  4. Step 4: Simplify right side
    18,825.96x = 400,132,332.45
  5. Step 5: Solve for x
    x = 400,132,332.45/18,825.96
  6. Step 6: Final answer
    x = 21,254.29

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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.