Home / 20,411.26-30,603.40-9,860.40

Finding the Fourth Proportional to 20,411.26, 30,603.40 and 9,860.40

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Solution

The fourth proportional to 20,411.26, 30,603.40 and 9,860.40 is: 14,784.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,411.26 : 30,603.40 = 9,860.40 : x
  2. Step 2: Convert to fraction form
    20,411.26/30,603.40 = 9,860.40/x
  3. Step 3: Cross multiply
    20,411.26x = 30,603.40 × 9,860.40
  4. Step 4: Simplify right side
    20,411.26x = 301,761,765.36
  5. Step 5: Solve for x
    x = 301,761,765.36/20,411.26
  6. Step 6: Final answer
    x = 14,784.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.