Home / 28,959.63-39,964.01-16,384.38

Finding the Fourth Proportional to 28,959.63, 39,964.01 and 16,384.38

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Solution

The fourth proportional to 28,959.63, 39,964.01 and 16,384.38 is: 22,610.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,959.63 : 39,964.01 = 16,384.38 : x
  2. Step 2: Convert to fraction form
    28,959.63/39,964.01 = 16,384.38/x
  3. Step 3: Cross multiply
    28,959.63x = 39,964.01 × 16,384.38
  4. Step 4: Simplify right side
    28,959.63x = 654,785,326.34
  5. Step 5: Solve for x
    x = 654,785,326.34/28,959.63
  6. Step 6: Final answer
    x = 22,610.28

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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.