Home / 28,790.16-39,730.53-16,851.16

Finding the Fourth Proportional to 28,790.16, 39,730.53 and 16,851.16

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Solution

The fourth proportional to 28,790.16, 39,730.53 and 16,851.16 is: 23,254.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,790.16 : 39,730.53 = 16,851.16 : x
  2. Step 2: Convert to fraction form
    28,790.16/39,730.53 = 16,851.16/x
  3. Step 3: Cross multiply
    28,790.16x = 39,730.53 × 16,851.16
  4. Step 4: Simplify right side
    28,790.16x = 669,505,517.91
  5. Step 5: Solve for x
    x = 669,505,517.91/28,790.16
  6. Step 6: Final answer
    x = 23,254.66

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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.