Home / 25,381.50-35,021.61-16,427.76

Finding the Fourth Proportional to 25,381.50, 35,021.61 and 16,427.76

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Solution

The fourth proportional to 25,381.50, 35,021.61 and 16,427.76 is: 22,667.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,381.50 : 35,021.61 = 16,427.76 : x
  2. Step 2: Convert to fraction form
    25,381.50/35,021.61 = 16,427.76/x
  3. Step 3: Cross multiply
    25,381.50x = 35,021.61 × 16,427.76
  4. Step 4: Simplify right side
    25,381.50x = 575,326,603.89
  5. Step 5: Solve for x
    x = 575,326,603.89/25,381.50
  6. Step 6: Final answer
    x = 22,667.16

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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.