Home / 25,745.77-35,518.50-15,672.81

Finding the Fourth Proportional to 25,745.77, 35,518.50 and 15,672.81

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Solution

The fourth proportional to 25,745.77, 35,518.50 and 15,672.81 is: 21,621.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,745.77 : 35,518.50 = 15,672.81 : x
  2. Step 2: Convert to fraction form
    25,745.77/35,518.50 = 15,672.81/x
  3. Step 3: Cross multiply
    25,745.77x = 35,518.50 × 15,672.81
  4. Step 4: Simplify right side
    25,745.77x = 556,674,701.99
  5. Step 5: Solve for x
    x = 556,674,701.99/25,745.77
  6. Step 6: Final answer
    x = 21,621.99

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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.