Home / 18,820.24-25,970.48-10,320.96

Finding the Fourth Proportional to 18,820.24, 25,970.48 and 10,320.96

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Solution

The fourth proportional to 18,820.24, 25,970.48 and 10,320.96 is: 14,242.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,820.24 : 25,970.48 = 10,320.96 : x
  2. Step 2: Convert to fraction form
    18,820.24/25,970.48 = 10,320.96/x
  3. Step 3: Cross multiply
    18,820.24x = 25,970.48 × 10,320.96
  4. Step 4: Simplify right side
    18,820.24x = 268,040,285.26
  5. Step 5: Solve for x
    x = 268,040,285.26/18,820.24
  6. Step 6: Final answer
    x = 14,242.13

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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.