Home / 28,746.09-39,669.57-16,807.05

Finding the Fourth Proportional to 28,746.09, 39,669.57 and 16,807.05

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Solution

The fourth proportional to 28,746.09, 39,669.57 and 16,807.05 is: 23,193.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,746.09 : 39,669.57 = 16,807.05 : x
  2. Step 2: Convert to fraction form
    28,746.09/39,669.57 = 16,807.05/x
  3. Step 3: Cross multiply
    28,746.09x = 39,669.57 × 16,807.05
  4. Step 4: Simplify right side
    28,746.09x = 666,728,446.47
  5. Step 5: Solve for x
    x = 666,728,446.47/28,746.09
  6. Step 6: Final answer
    x = 23,193.71

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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.