Home / 21,199.68-31,798.56-14,224.32

Finding the Fourth Proportional to 21,199.68, 31,798.56 and 14,224.32

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Solution

The fourth proportional to 21,199.68, 31,798.56 and 14,224.32 is: 21,335.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,199.68 : 31,798.56 = 14,224.32 : x
  2. Step 2: Convert to fraction form
    21,199.68/31,798.56 = 14,224.32/x
  3. Step 3: Cross multiply
    21,199.68x = 31,798.56 × 14,224.32
  4. Step 4: Simplify right side
    21,199.68x = 452,312,892.98
  5. Step 5: Solve for x
    x = 452,312,892.98/21,199.68
  6. Step 6: Final answer
    x = 21,335.84

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1.5x scale

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.