Home / 21,309.93-29,417.72-14,151.15

Finding the Fourth Proportional to 21,309.93, 29,417.72 and 14,151.15

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Solution

The fourth proportional to 21,309.93, 29,417.72 and 14,151.15 is: 19,535.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,309.93 : 29,417.72 = 14,151.15 : x
  2. Step 2: Convert to fraction form
    21,309.93/29,417.72 = 14,151.15/x
  3. Step 3: Cross multiply
    21,309.93x = 29,417.72 × 14,151.15
  4. Step 4: Simplify right side
    21,309.93x = 416,294,497.62
  5. Step 5: Solve for x
    x = 416,294,497.62/21,309.93
  6. Step 6: Final answer
    x = 19,535.24

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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.