Home / 21,308.81-29,395.34-16,264.27

Finding the Fourth Proportional to 21,308.81, 29,395.34 and 16,264.27

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Solution

The fourth proportional to 21,308.81, 29,395.34 and 16,264.27 is: 22,436.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,308.81 : 29,395.34 = 16,264.27 : x
  2. Step 2: Convert to fraction form
    21,308.81/29,395.34 = 16,264.27/x
  3. Step 3: Cross multiply
    21,308.81x = 29,395.34 × 16,264.27
  4. Step 4: Simplify right side
    21,308.81x = 478,093,854.40
  5. Step 5: Solve for x
    x = 478,093,854.40/21,308.81
  6. Step 6: Final answer
    x = 22,436.44

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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.