Home / 30,543.21-42,120-23,826.42

Finding the Fourth Proportional to 30,543.21, 42,120 and 23,826.42

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Solution

The fourth proportional to 30,543.21, 42,120 and 23,826.42 is: 32,857.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,543.21 : 42,120 = 23,826.42 : x
  2. Step 2: Convert to fraction form
    30,543.21/42,120 = 23,826.42/x
  3. Step 3: Cross multiply
    30,543.21x = 42,120 × 23,826.42
  4. Step 4: Simplify right side
    30,543.21x = 1,003,568,810.40
  5. Step 5: Solve for x
    x = 1,003,568,810.40/30,543.21
  6. Step 6: Final answer
    x = 32,857.35

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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.