Home / 20,574.21-30,808.60-14,240.31

Finding the Fourth Proportional to 20,574.21, 30,808.60 and 14,240.31

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Solution

The fourth proportional to 20,574.21, 30,808.60 and 14,240.31 is: 21,323.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,574.21 : 30,808.60 = 14,240.31 : x
  2. Step 2: Convert to fraction form
    20,574.21/30,808.60 = 14,240.31/x
  3. Step 3: Cross multiply
    20,574.21x = 30,808.60 × 14,240.31
  4. Step 4: Simplify right side
    20,574.21x = 438,724,014.67
  5. Step 5: Solve for x
    x = 438,724,014.67/20,574.21
  6. Step 6: Final answer
    x = 21,323.98

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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.