Home / 28,258.43-42,395.43-12,476.03

Finding the Fourth Proportional to 28,258.43, 42,395.43 and 12,476.03

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Solution

The fourth proportional to 28,258.43, 42,395.43 and 12,476.03 is: 18,717.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,258.43 : 42,395.43 = 12,476.03 : x
  2. Step 2: Convert to fraction form
    28,258.43/42,395.43 = 12,476.03/x
  3. Step 3: Cross multiply
    28,258.43x = 42,395.43 × 12,476.03
  4. Step 4: Simplify right side
    28,258.43x = 528,926,444.57
  5. Step 5: Solve for x
    x = 528,926,444.57/28,258.43
  6. Step 6: Final answer
    x = 18,717.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.