Home / 28,220.03-38,943.74-15,473.41

Finding the Fourth Proportional to 28,220.03, 38,943.74 and 15,473.41

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Solution

The fourth proportional to 28,220.03, 38,943.74 and 15,473.41 is: 21,353.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,220.03 : 38,943.74 = 15,473.41 : x
  2. Step 2: Convert to fraction form
    28,220.03/38,943.74 = 15,473.41/x
  3. Step 3: Cross multiply
    28,220.03x = 38,943.74 × 15,473.41
  4. Step 4: Simplify right side
    28,220.03x = 602,592,397.28
  5. Step 5: Solve for x
    x = 602,592,397.28/28,220.03
  6. Step 6: Final answer
    x = 21,353.36

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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.