Home / 28,240.38-38,971.35-16,140.74

Finding the Fourth Proportional to 28,240.38, 38,971.35 and 16,140.74

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Solution

The fourth proportional to 28,240.38, 38,971.35 and 16,140.74 is: 22,274.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,240.38 : 38,971.35 = 16,140.74 : x
  2. Step 2: Convert to fraction form
    28,240.38/38,971.35 = 16,140.74/x
  3. Step 3: Cross multiply
    28,240.38x = 38,971.35 × 16,140.74
  4. Step 4: Simplify right side
    28,240.38x = 629,026,232.94
  5. Step 5: Solve for x
    x = 629,026,232.94/28,240.38
  6. Step 6: Final answer
    x = 22,274.00

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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.