Home / 20,925.56-28,853.74-16,134.67

Finding the Fourth Proportional to 20,925.56, 28,853.74 and 16,134.67

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Solution

The fourth proportional to 20,925.56, 28,853.74 and 16,134.67 is: 22,247.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,925.56 : 28,853.74 = 16,134.67 : x
  2. Step 2: Convert to fraction form
    20,925.56/28,853.74 = 16,134.67/x
  3. Step 3: Cross multiply
    20,925.56x = 28,853.74 × 16,134.67
  4. Step 4: Simplify right side
    20,925.56x = 465,545,460.69
  5. Step 5: Solve for x
    x = 465,545,460.69/20,925.56
  6. Step 6: Final answer
    x = 22,247.69

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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.