Home / 30,941.64-42,714.54-19,007.64

Finding the Fourth Proportional to 30,941.64, 42,714.54 and 19,007.64

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Solution

The fourth proportional to 30,941.64, 42,714.54 and 19,007.64 is: 26,239.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,941.64 : 42,714.54 = 19,007.64 : x
  2. Step 2: Convert to fraction form
    30,941.64/42,714.54 = 19,007.64/x
  3. Step 3: Cross multiply
    30,941.64x = 42,714.54 × 19,007.64
  4. Step 4: Simplify right side
    30,941.64x = 811,902,599.09
  5. Step 5: Solve for x
    x = 811,902,599.09/30,941.64
  6. Step 6: Final answer
    x = 26,239.80

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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.