Home / 28,730.48-43,056.40-21,704.72

Finding the Fourth Proportional to 28,730.48, 43,056.40 and 21,704.72

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Solution

The fourth proportional to 28,730.48, 43,056.40 and 21,704.72 is: 32,527.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,730.48 : 43,056.40 = 21,704.72 : x
  2. Step 2: Convert to fraction form
    28,730.48/43,056.40 = 21,704.72/x
  3. Step 3: Cross multiply
    28,730.48x = 43,056.40 × 21,704.72
  4. Step 4: Simplify right side
    28,730.48x = 934,527,106.21
  5. Step 5: Solve for x
    x = 934,527,106.21/28,730.48
  6. Step 6: Final answer
    x = 32,527.38

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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.