Home / 20,337.06-28,064.92-11,384.63

Finding the Fourth Proportional to 20,337.06, 28,064.92 and 11,384.63

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Solution

The fourth proportional to 20,337.06, 28,064.92 and 11,384.63 is: 15,710.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,337.06 : 28,064.92 = 11,384.63 : x
  2. Step 2: Convert to fraction form
    20,337.06/28,064.92 = 11,384.63/x
  3. Step 3: Cross multiply
    20,337.06x = 28,064.92 × 11,384.63
  4. Step 4: Simplify right side
    20,337.06x = 319,508,798.93
  5. Step 5: Solve for x
    x = 319,508,798.93/20,337.06
  6. Step 6: Final answer
    x = 15,710.67

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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.