Home / 30,535.11-42,126.32-19,043.26

Finding the Fourth Proportional to 30,535.11, 42,126.32 and 19,043.26

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Solution

The fourth proportional to 30,535.11, 42,126.32 and 19,043.26 is: 26,272.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,535.11 : 42,126.32 = 19,043.26 : x
  2. Step 2: Convert to fraction form
    30,535.11/42,126.32 = 19,043.26/x
  3. Step 3: Cross multiply
    30,535.11x = 42,126.32 × 19,043.26
  4. Step 4: Simplify right side
    30,535.11x = 802,222,464.60
  5. Step 5: Solve for x
    x = 802,222,464.60/30,535.11
  6. Step 6: Final answer
    x = 26,272.13

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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.