Home / 21,225.16-29,223.60-16,173.16

Finding the Fourth Proportional to 21,225.16, 29,223.60 and 16,173.16

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Solution

The fourth proportional to 21,225.16, 29,223.60 and 16,173.16 is: 22,267.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,225.16 : 29,223.60 = 16,173.16 : x
  2. Step 2: Convert to fraction form
    21,225.16/29,223.60 = 16,173.16/x
  3. Step 3: Cross multiply
    21,225.16x = 29,223.60 × 16,173.16
  4. Step 4: Simplify right side
    21,225.16x = 472,637,958.58
  5. Step 5: Solve for x
    x = 472,637,958.58/21,225.16
  6. Step 6: Final answer
    x = 22,267.82

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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.