Home / 20,315.64-28,090.06-17,824.88

Finding the Fourth Proportional to 20,315.64, 28,090.06 and 17,824.88

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Solution

The fourth proportional to 20,315.64, 28,090.06 and 17,824.88 is: 24,646.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,315.64 : 28,090.06 = 17,824.88 : x
  2. Step 2: Convert to fraction form
    20,315.64/28,090.06 = 17,824.88/x
  3. Step 3: Cross multiply
    20,315.64x = 28,090.06 × 17,824.88
  4. Step 4: Simplify right side
    20,315.64x = 500,701,948.69
  5. Step 5: Solve for x
    x = 500,701,948.69/20,315.64
  6. Step 6: Final answer
    x = 24,646.13

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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.