Home / 25,642.65-38,450.34-13,157.67

Finding the Fourth Proportional to 25,642.65, 38,450.34 and 13,157.67

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Solution

The fourth proportional to 25,642.65, 38,450.34 and 13,157.67 is: 19,729.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,642.65 : 38,450.34 = 13,157.67 : x
  2. Step 2: Convert to fraction form
    25,642.65/38,450.34 = 13,157.67/x
  3. Step 3: Cross multiply
    25,642.65x = 38,450.34 × 13,157.67
  4. Step 4: Simplify right side
    25,642.65x = 505,916,885.11
  5. Step 5: Solve for x
    x = 505,916,885.11/25,642.65
  6. Step 6: Final answer
    x = 19,729.51

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1.5x scale

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.