Home / 20,277.10-30,405.93-10,411.30

Finding the Fourth Proportional to 20,277.10, 30,405.93 and 10,411.30

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Solution

The fourth proportional to 20,277.10, 30,405.93 and 10,411.30 is: 15,611.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,277.10 : 30,405.93 = 10,411.30 : x
  2. Step 2: Convert to fraction form
    20,277.10/30,405.93 = 10,411.30/x
  3. Step 3: Cross multiply
    20,277.10x = 30,405.93 × 10,411.30
  4. Step 4: Simplify right side
    20,277.10x = 316,565,259.01
  5. Step 5: Solve for x
    x = 316,565,259.01/20,277.10
  6. Step 6: Final answer
    x = 15,611.96

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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.