Home / 28,966.72-43,406.34-21,536.32

Finding the Fourth Proportional to 28,966.72, 43,406.34 and 21,536.32

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Solution

The fourth proportional to 28,966.72, 43,406.34 and 21,536.32 is: 32,271.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,966.72 : 43,406.34 = 21,536.32 : x
  2. Step 2: Convert to fraction form
    28,966.72/43,406.34 = 21,536.32/x
  3. Step 3: Cross multiply
    28,966.72x = 43,406.34 × 21,536.32
  4. Step 4: Simplify right side
    28,966.72x = 934,812,828.27
  5. Step 5: Solve for x
    x = 934,812,828.27/28,966.72
  6. Step 6: Final answer
    x = 32,271.96

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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.