Home / 21,465.51-29,623.17-12,511.56

Finding the Fourth Proportional to 21,465.51, 29,623.17 and 12,511.56

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Solution

The fourth proportional to 21,465.51, 29,623.17 and 12,511.56 is: 17,266.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,465.51 : 29,623.17 = 12,511.56 : x
  2. Step 2: Convert to fraction form
    21,465.51/29,623.17 = 12,511.56/x
  3. Step 3: Cross multiply
    21,465.51x = 29,623.17 × 12,511.56
  4. Step 4: Simplify right side
    21,465.51x = 370,632,156.47
  5. Step 5: Solve for x
    x = 370,632,156.47/21,465.51
  6. Step 6: Final answer
    x = 17,266.41

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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.