Home / 28,631.63-39,509.16-16,696.10

Finding the Fourth Proportional to 28,631.63, 39,509.16 and 16,696.10

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Solution

The fourth proportional to 28,631.63, 39,509.16 and 16,696.10 is: 23,039.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,631.63 : 39,509.16 = 16,696.10 : x
  2. Step 2: Convert to fraction form
    28,631.63/39,509.16 = 16,696.10/x
  3. Step 3: Cross multiply
    28,631.63x = 39,509.16 × 16,696.10
  4. Step 4: Simplify right side
    28,631.63x = 659,648,886.28
  5. Step 5: Solve for x
    x = 659,648,886.28/28,631.63
  6. Step 6: Final answer
    x = 23,039.17

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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.