Home / 22,519.60-31,064.77-13,561.67

Finding the Fourth Proportional to 22,519.60, 31,064.77 and 13,561.67

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Solution

The fourth proportional to 22,519.60, 31,064.77 and 13,561.67 is: 18,707.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,519.60 : 31,064.77 = 13,561.67 : x
  2. Step 2: Convert to fraction form
    22,519.60/31,064.77 = 13,561.67/x
  3. Step 3: Cross multiply
    22,519.60x = 31,064.77 × 13,561.67
  4. Step 4: Simplify right side
    22,519.60x = 421,290,159.37
  5. Step 5: Solve for x
    x = 421,290,159.37/22,519.60
  6. Step 6: Final answer
    x = 18,707.71

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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.