Home / 30,958.56-42,707.16-19,609.02

Finding the Fourth Proportional to 30,958.56, 42,707.16 and 19,609.02

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Solution

The fourth proportional to 30,958.56, 42,707.16 and 19,609.02 is: 27,050.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,958.56 : 42,707.16 = 19,609.02 : x
  2. Step 2: Convert to fraction form
    30,958.56/42,707.16 = 19,609.02/x
  3. Step 3: Cross multiply
    30,958.56x = 42,707.16 × 19,609.02
  4. Step 4: Simplify right side
    30,958.56x = 837,445,554.58
  5. Step 5: Solve for x
    x = 837,445,554.58/30,958.56
  6. Step 6: Final answer
    x = 27,050.53

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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.