Home / 25,731.24-35,477.28-20,695.67

Finding the Fourth Proportional to 25,731.24, 35,477.28 and 20,695.67

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Solution

The fourth proportional to 25,731.24, 35,477.28 and 20,695.67 is: 28,534.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,731.24 : 35,477.28 = 20,695.67 : x
  2. Step 2: Convert to fraction form
    25,731.24/35,477.28 = 20,695.67/x
  3. Step 3: Cross multiply
    25,731.24x = 35,477.28 × 20,695.67
  4. Step 4: Simplify right side
    25,731.24x = 734,225,901.99
  5. Step 5: Solve for x
    x = 734,225,901.99/25,731.24
  6. Step 6: Final answer
    x = 28,534.42

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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.