Home / 30,678.16-42,325.68-25,003.16

Finding the Fourth Proportional to 30,678.16, 42,325.68 and 25,003.16

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Solution

The fourth proportional to 30,678.16, 42,325.68 and 25,003.16 is: 34,496.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,678.16 : 42,325.68 = 25,003.16 : x
  2. Step 2: Convert to fraction form
    30,678.16/42,325.68 = 25,003.16/x
  3. Step 3: Cross multiply
    30,678.16x = 42,325.68 × 25,003.16
  4. Step 4: Simplify right side
    30,678.16x = 1,058,275,749.15
  5. Step 5: Solve for x
    x = 1,058,275,749.15/30,678.16
  6. Step 6: Final answer
    x = 34,496.06

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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.