Home / 25,402.86-35,021.30-16,905.38

Finding the Fourth Proportional to 25,402.86, 35,021.30 and 16,905.38

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Solution

The fourth proportional to 25,402.86, 35,021.30 and 16,905.38 is: 23,306.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,402.86 : 35,021.30 = 16,905.38 : x
  2. Step 2: Convert to fraction form
    25,402.86/35,021.30 = 16,905.38/x
  3. Step 3: Cross multiply
    25,402.86x = 35,021.30 × 16,905.38
  4. Step 4: Simplify right side
    25,402.86x = 592,048,124.96
  5. Step 5: Solve for x
    x = 592,048,124.96/25,402.86
  6. Step 6: Final answer
    x = 23,306.36

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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.