Home / 21,045.56-29,033.70-13,866.26

Finding the Fourth Proportional to 21,045.56, 29,033.70 and 13,866.26

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Solution

The fourth proportional to 21,045.56, 29,033.70 and 13,866.26 is: 19,129.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,045.56 : 29,033.70 = 13,866.26 : x
  2. Step 2: Convert to fraction form
    21,045.56/29,033.70 = 13,866.26/x
  3. Step 3: Cross multiply
    21,045.56x = 29,033.70 × 13,866.26
  4. Step 4: Simplify right side
    21,045.56x = 402,588,618.46
  5. Step 5: Solve for x
    x = 402,588,618.46/21,045.56
  6. Step 6: Final answer
    x = 19,129.39

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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.