Home / 20,892.36-31,326.02-9,801.48

Finding the Fourth Proportional to 20,892.36, 31,326.02 and 9,801.48

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Solution

The fourth proportional to 20,892.36, 31,326.02 and 9,801.48 is: 14,696.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,892.36 : 31,326.02 = 9,801.48 : x
  2. Step 2: Convert to fraction form
    20,892.36/31,326.02 = 9,801.48/x
  3. Step 3: Cross multiply
    20,892.36x = 31,326.02 × 9,801.48
  4. Step 4: Simplify right side
    20,892.36x = 307,041,358.51
  5. Step 5: Solve for x
    x = 307,041,358.51/20,892.36
  6. Step 6: Final answer
    x = 14,696.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.