Home / 28,172.99-38,883.23-16,077.40

Finding the Fourth Proportional to 28,172.99, 38,883.23 and 16,077.40

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Solution

The fourth proportional to 28,172.99, 38,883.23 and 16,077.40 is: 22,189.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,172.99 : 38,883.23 = 16,077.40 : x
  2. Step 2: Convert to fraction form
    28,172.99/38,883.23 = 16,077.40/x
  3. Step 3: Cross multiply
    28,172.99x = 38,883.23 × 16,077.40
  4. Step 4: Simplify right side
    28,172.99x = 625,141,242.00
  5. Step 5: Solve for x
    x = 625,141,242.00/28,172.99
  6. Step 6: Final answer
    x = 22,189.38

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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.