Home / 21,411.00-29,557.09-12,455.23

Finding the Fourth Proportional to 21,411.00, 29,557.09 and 12,455.23

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Solution

The fourth proportional to 21,411.00, 29,557.09 and 12,455.23 is: 17,193.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,411.00 : 29,557.09 = 12,455.23 : x
  2. Step 2: Convert to fraction form
    21,411.00/29,557.09 = 12,455.23/x
  3. Step 3: Cross multiply
    21,411.00x = 29,557.09 × 12,455.23
  4. Step 4: Simplify right side
    21,411.00x = 368,140,354.08
  5. Step 5: Solve for x
    x = 368,140,354.08/21,411.00
  6. Step 6: Final answer
    x = 17,193.99

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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.