Home / 21,455.93-29,592.87-18,798.73

Finding the Fourth Proportional to 21,455.93, 29,592.87 and 18,798.73

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Solution

The fourth proportional to 21,455.93, 29,592.87 and 18,798.73 is: 25,927.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,455.93 : 29,592.87 = 18,798.73 : x
  2. Step 2: Convert to fraction form
    21,455.93/29,592.87 = 18,798.73/x
  3. Step 3: Cross multiply
    21,455.93x = 29,592.87 × 18,798.73
  4. Step 4: Simplify right side
    21,455.93x = 556,308,373.06
  5. Step 5: Solve for x
    x = 556,308,373.06/21,455.93
  6. Step 6: Final answer
    x = 25,927.95

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Double scale
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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.