Home / 28,039.08-38,680.74-16,702.12

Finding the Fourth Proportional to 28,039.08, 38,680.74 and 16,702.12

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Solution

The fourth proportional to 28,039.08, 38,680.74 and 16,702.12 is: 23,041.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,039.08 : 38,680.74 = 16,702.12 : x
  2. Step 2: Convert to fraction form
    28,039.08/38,680.74 = 16,702.12/x
  3. Step 3: Cross multiply
    28,039.08x = 38,680.74 × 16,702.12
  4. Step 4: Simplify right side
    28,039.08x = 646,050,361.17
  5. Step 5: Solve for x
    x = 646,050,361.17/28,039.08
  6. Step 6: Final answer
    x = 23,041.07

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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.