Home / 28,192.29-38,905.03-15,271.32

Finding the Fourth Proportional to 28,192.29, 38,905.03 and 15,271.32

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Solution

The fourth proportional to 28,192.29, 38,905.03 and 15,271.32 is: 21,074.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,192.29 : 38,905.03 = 15,271.32 : x
  2. Step 2: Convert to fraction form
    28,192.29/38,905.03 = 15,271.32/x
  3. Step 3: Cross multiply
    28,192.29x = 38,905.03 × 15,271.32
  4. Step 4: Simplify right side
    28,192.29x = 594,131,269.09
  5. Step 5: Solve for x
    x = 594,131,269.09/28,192.29
  6. Step 6: Final answer
    x = 21,074.25

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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.