Home / 31,488.08-43,427.72-22,980.64

Finding the Fourth Proportional to 31,488.08, 43,427.72 and 22,980.64

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Solution

The fourth proportional to 31,488.08, 43,427.72 and 22,980.64 is: 31,694.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,488.08 : 43,427.72 = 22,980.64 : x
  2. Step 2: Convert to fraction form
    31,488.08/43,427.72 = 22,980.64/x
  3. Step 3: Cross multiply
    31,488.08x = 43,427.72 × 22,980.64
  4. Step 4: Simplify right side
    31,488.08x = 997,996,799.34
  5. Step 5: Solve for x
    x = 997,996,799.34/31,488.08
  6. Step 6: Final answer
    x = 31,694.43

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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.