Home / 28,103.79-42,143.33-14,953.03

Finding the Fourth Proportional to 28,103.79, 42,143.33 and 14,953.03

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Solution

The fourth proportional to 28,103.79, 42,143.33 and 14,953.03 is: 22,422.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,103.79 : 42,143.33 = 14,953.03 : x
  2. Step 2: Convert to fraction form
    28,103.79/42,143.33 = 14,953.03/x
  3. Step 3: Cross multiply
    28,103.79x = 42,143.33 × 14,953.03
  4. Step 4: Simplify right side
    28,103.79x = 630,170,403.02
  5. Step 5: Solve for x
    x = 630,170,403.02/28,103.79
  6. Step 6: Final answer
    x = 22,422.97

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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.