Home / 18,420.83-25,421.33-10,462.58

Finding the Fourth Proportional to 18,420.83, 25,421.33 and 10,462.58

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Solution

The fourth proportional to 18,420.83, 25,421.33 and 10,462.58 is: 14,438.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,420.83 : 25,421.33 = 10,462.58 : x
  2. Step 2: Convert to fraction form
    18,420.83/25,421.33 = 10,462.58/x
  3. Step 3: Cross multiply
    18,420.83x = 25,421.33 × 10,462.58
  4. Step 4: Simplify right side
    18,420.83x = 265,972,634.36
  5. Step 5: Solve for x
    x = 265,972,634.36/18,420.83
  6. Step 6: Final answer
    x = 14,438.69

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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.