Home / 18,423.16-25,424.07-10,039.66

Finding the Fourth Proportional to 18,423.16, 25,424.07 and 10,039.66

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Solution

The fourth proportional to 18,423.16, 25,424.07 and 10,039.66 is: 13,854.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,423.16 : 25,424.07 = 10,039.66 : x
  2. Step 2: Convert to fraction form
    18,423.16/25,424.07 = 10,039.66/x
  3. Step 3: Cross multiply
    18,423.16x = 25,424.07 × 10,039.66
  4. Step 4: Simplify right side
    18,423.16x = 255,249,018.62
  5. Step 5: Solve for x
    x = 255,249,018.62/18,423.16
  6. Step 6: Final answer
    x = 13,854.79

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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.