Home / 21,038.70-29,012.67-16,321.26

Finding the Fourth Proportional to 21,038.70, 29,012.67 and 16,321.26

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Solution

The fourth proportional to 21,038.70, 29,012.67 and 16,321.26 is: 22,507.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,038.70 : 29,012.67 = 16,321.26 : x
  2. Step 2: Convert to fraction form
    21,038.70/29,012.67 = 16,321.26/x
  3. Step 3: Cross multiply
    21,038.70x = 29,012.67 × 16,321.26
  4. Step 4: Simplify right side
    21,038.70x = 473,523,330.36
  5. Step 5: Solve for x
    x = 473,523,330.36/21,038.70
  6. Step 6: Final answer
    x = 22,507.25

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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.