Home / 20,482.54-28,268.67-15,192.46

Finding the Fourth Proportional to 20,482.54, 28,268.67 and 15,192.46

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Solution

The fourth proportional to 20,482.54, 28,268.67 and 15,192.46 is: 20,967.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,482.54 : 28,268.67 = 15,192.46 : x
  2. Step 2: Convert to fraction form
    20,482.54/28,268.67 = 15,192.46/x
  3. Step 3: Cross multiply
    20,482.54x = 28,268.67 × 15,192.46
  4. Step 4: Simplify right side
    20,482.54x = 429,470,638.23
  5. Step 5: Solve for x
    x = 429,470,638.23/20,482.54
  6. Step 6: Final answer
    x = 20,967.65

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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.