Home / 21,188.67-29,245.73-14,477.01

Finding the Fourth Proportional to 21,188.67, 29,245.73 and 14,477.01

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Solution

The fourth proportional to 21,188.67, 29,245.73 and 14,477.01 is: 19,981.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,188.67 : 29,245.73 = 14,477.01 : x
  2. Step 2: Convert to fraction form
    21,188.67/29,245.73 = 14,477.01/x
  3. Step 3: Cross multiply
    21,188.67x = 29,245.73 × 14,477.01
  4. Step 4: Simplify right side
    21,188.67x = 423,390,725.67
  5. Step 5: Solve for x
    x = 423,390,725.67/21,188.67
  6. Step 6: Final answer
    x = 19,981.94

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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.