Home / 21,091.49-29,130.18-14,365.45

Finding the Fourth Proportional to 21,091.49, 29,130.18 and 14,365.45

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Solution

The fourth proportional to 21,091.49, 29,130.18 and 14,365.45 is: 19,840.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,091.49 : 29,130.18 = 14,365.45 : x
  2. Step 2: Convert to fraction form
    21,091.49/29,130.18 = 14,365.45/x
  3. Step 3: Cross multiply
    21,091.49x = 29,130.18 × 14,365.45
  4. Step 4: Simplify right side
    21,091.49x = 418,468,207.63
  5. Step 5: Solve for x
    x = 418,468,207.63/21,091.49
  6. Step 6: Final answer
    x = 19,840.62

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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.