Home / 21,526.36-29,699.06-13,454.51

Finding the Fourth Proportional to 21,526.36, 29,699.06 and 13,454.51

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Solution

The fourth proportional to 21,526.36, 29,699.06 and 13,454.51 is: 18,562.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,526.36 : 29,699.06 = 13,454.51 : x
  2. Step 2: Convert to fraction form
    21,526.36/29,699.06 = 13,454.51/x
  3. Step 3: Cross multiply
    21,526.36x = 29,699.06 × 13,454.51
  4. Step 4: Simplify right side
    21,526.36x = 399,586,083.99
  5. Step 5: Solve for x
    x = 399,586,083.99/21,526.36
  6. Step 6: Final answer
    x = 18,562.64

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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.