Home / 21,210.48-29,237.04-16,158.72

Finding the Fourth Proportional to 21,210.48, 29,237.04 and 16,158.72

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Solution

The fourth proportional to 21,210.48, 29,237.04 and 16,158.72 is: 22,273.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,210.48 : 29,237.04 = 16,158.72 : x
  2. Step 2: Convert to fraction form
    21,210.48/29,237.04 = 16,158.72/x
  3. Step 3: Cross multiply
    21,210.48x = 29,237.04 × 16,158.72
  4. Step 4: Simplify right side
    21,210.48x = 472,433,142.99
  5. Step 5: Solve for x
    x = 472,433,142.99/21,210.48
  6. Step 6: Final answer
    x = 22,273.57

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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.