Home / 20,336.01-28,064.93-11,384.07

Finding the Fourth Proportional to 20,336.01, 28,064.93 and 11,384.07

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Solution

The fourth proportional to 20,336.01, 28,064.93 and 11,384.07 is: 15,710.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,336.01 : 28,064.93 = 11,384.07 : x
  2. Step 2: Convert to fraction form
    20,336.01/28,064.93 = 11,384.07/x
  3. Step 3: Cross multiply
    20,336.01x = 28,064.93 × 11,384.07
  4. Step 4: Simplify right side
    20,336.01x = 319,493,127.67
  5. Step 5: Solve for x
    x = 319,493,127.67/20,336.01
  6. Step 6: Final answer
    x = 15,710.71

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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.