Home / 28,018.32-38,683.28-17,422.36

Finding the Fourth Proportional to 28,018.32, 38,683.28 and 17,422.36

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Solution

The fourth proportional to 28,018.32, 38,683.28 and 17,422.36 is: 24,054.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,018.32 : 38,683.28 = 17,422.36 : x
  2. Step 2: Convert to fraction form
    28,018.32/38,683.28 = 17,422.36/x
  3. Step 3: Cross multiply
    28,018.32x = 38,683.28 × 17,422.36
  4. Step 4: Simplify right side
    28,018.32x = 673,954,030.14
  5. Step 5: Solve for x
    x = 673,954,030.14/28,018.32
  6. Step 6: Final answer
    x = 24,054.05

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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.