Home / 19,231.42-28,827.33-13,953.28

Finding the Fourth Proportional to 19,231.42, 28,827.33 and 13,953.28

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Solution

The fourth proportional to 19,231.42, 28,827.33 and 13,953.28 is: 20,915.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,231.42 : 28,827.33 = 13,953.28 : x
  2. Step 2: Convert to fraction form
    19,231.42/28,827.33 = 13,953.28/x
  3. Step 3: Cross multiply
    19,231.42x = 28,827.33 × 13,953.28
  4. Step 4: Simplify right side
    19,231.42x = 402,235,807.14
  5. Step 5: Solve for x
    x = 402,235,807.14/19,231.42
  6. Step 6: Final answer
    x = 20,915.55

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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.