Home / 28,746.32-39,670.04-16,170.26

Finding the Fourth Proportional to 28,746.32, 39,670.04 and 16,170.26

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Solution

The fourth proportional to 28,746.32, 39,670.04 and 16,170.26 is: 22,315.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,746.32 : 39,670.04 = 16,170.26 : x
  2. Step 2: Convert to fraction form
    28,746.32/39,670.04 = 16,170.26/x
  3. Step 3: Cross multiply
    28,746.32x = 39,670.04 × 16,170.26
  4. Step 4: Simplify right side
    28,746.32x = 641,474,780.16
  5. Step 5: Solve for x
    x = 641,474,780.16/28,746.32
  6. Step 6: Final answer
    x = 22,315.02

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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.