Home / 31,362.77-43,300.14-21,799.64

Finding the Fourth Proportional to 31,362.77, 43,300.14 and 21,799.64

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Solution

The fourth proportional to 31,362.77, 43,300.14 and 21,799.64 is: 30,097.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,362.77 : 43,300.14 = 21,799.64 : x
  2. Step 2: Convert to fraction form
    31,362.77/43,300.14 = 21,799.64/x
  3. Step 3: Cross multiply
    31,362.77x = 43,300.14 × 21,799.64
  4. Step 4: Simplify right side
    31,362.77x = 943,927,490.45
  5. Step 5: Solve for x
    x = 943,927,490.45/31,362.77
  6. Step 6: Final answer
    x = 30,097.07

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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.