Home / 21,819.12-30,097.08-16,534.32

Finding the Fourth Proportional to 21,819.12, 30,097.08 and 16,534.32

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Solution

The fourth proportional to 21,819.12, 30,097.08 and 16,534.32 is: 22,807.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,819.12 : 30,097.08 = 16,534.32 : x
  2. Step 2: Convert to fraction form
    21,819.12/30,097.08 = 16,534.32/x
  3. Step 3: Cross multiply
    21,819.12x = 30,097.08 × 16,534.32
  4. Step 4: Simplify right side
    21,819.12x = 497,634,751.79
  5. Step 5: Solve for x
    x = 497,634,751.79/21,819.12
  6. Step 6: Final answer
    x = 22,807.28

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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.