Home / 30,480.90-42,040.38-26,238.93

Finding the Fourth Proportional to 30,480.90, 42,040.38 and 26,238.93

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Solution

The fourth proportional to 30,480.90, 42,040.38 and 26,238.93 is: 36,189.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,480.90 : 42,040.38 = 26,238.93 : x
  2. Step 2: Convert to fraction form
    30,480.90/42,040.38 = 26,238.93/x
  3. Step 3: Cross multiply
    30,480.90x = 42,040.38 × 26,238.93
  4. Step 4: Simplify right side
    30,480.90x = 1,103,094,587.99
  5. Step 5: Solve for x
    x = 1,103,094,587.99/30,480.90
  6. Step 6: Final answer
    x = 36,189.70

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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.