Home / 21,187.67-29,244.35-14,476.01

Finding the Fourth Proportional to 21,187.67, 29,244.35 and 14,476.01

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Solution

The fourth proportional to 21,187.67, 29,244.35 and 14,476.01 is: 19,980.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,187.67 : 29,244.35 = 14,476.01 : x
  2. Step 2: Convert to fraction form
    21,187.67/29,244.35 = 14,476.01/x
  3. Step 3: Cross multiply
    21,187.67x = 29,244.35 × 14,476.01
  4. Step 4: Simplify right side
    21,187.67x = 423,341,393.01
  5. Step 5: Solve for x
    x = 423,341,393.01/21,187.67
  6. Step 6: Final answer
    x = 19,980.56

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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.