Home / 30,391.19-41,919.36-26,405.45

Finding the Fourth Proportional to 30,391.19, 41,919.36 and 26,405.45

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Solution

The fourth proportional to 30,391.19, 41,919.36 and 26,405.45 is: 36,421.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,391.19 : 41,919.36 = 26,405.45 : x
  2. Step 2: Convert to fraction form
    30,391.19/41,919.36 = 26,405.45/x
  3. Step 3: Cross multiply
    30,391.19x = 41,919.36 × 26,405.45
  4. Step 4: Simplify right side
    30,391.19x = 1,106,899,564.51
  5. Step 5: Solve for x
    x = 1,106,899,564.51/30,391.19
  6. Step 6: Final answer
    x = 36,421.72

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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.