Home / 20,846.09-28,770.38-12,347.53

Finding the Fourth Proportional to 20,846.09, 28,770.38 and 12,347.53

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Solution

The fourth proportional to 20,846.09, 28,770.38 and 12,347.53 is: 17,041.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,846.09 : 28,770.38 = 12,347.53 : x
  2. Step 2: Convert to fraction form
    20,846.09/28,770.38 = 12,347.53/x
  3. Step 3: Cross multiply
    20,846.09x = 28,770.38 × 12,347.53
  4. Step 4: Simplify right side
    20,846.09x = 355,243,130.16
  5. Step 5: Solve for x
    x = 355,243,130.16/20,846.09
  6. Step 6: Final answer
    x = 17,041.24

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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.