Home / 18,422.32-25,422.79-10,038.82

Finding the Fourth Proportional to 18,422.32, 25,422.79 and 10,038.82

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Solution

The fourth proportional to 18,422.32, 25,422.79 and 10,038.82 is: 13,853.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,422.32 : 25,422.79 = 10,038.82 : x
  2. Step 2: Convert to fraction form
    18,422.32/25,422.79 = 10,038.82/x
  3. Step 3: Cross multiply
    18,422.32x = 25,422.79 × 10,038.82
  4. Step 4: Simplify right side
    18,422.32x = 255,214,812.71
  5. Step 5: Solve for x
    x = 255,214,812.71/18,422.32
  6. Step 6: Final answer
    x = 13,853.57

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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.