Home / 43,204.50-64,712.79-20,970.99

Finding the Fourth Proportional to 43,204.50, 64,712.79 and 20,970.99

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Solution

The fourth proportional to 43,204.50, 64,712.79 and 20,970.99 is: 31,410.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,204.50 : 64,712.79 = 20,970.99 : x
  2. Step 2: Convert to fraction form
    43,204.50/64,712.79 = 20,970.99/x
  3. Step 3: Cross multiply
    43,204.50x = 64,712.79 × 20,970.99
  4. Step 4: Simplify right side
    43,204.50x = 1,357,091,271.96
  5. Step 5: Solve for x
    x = 1,357,091,271.96/43,204.50
  6. Step 6: Final answer
    x = 31,410.88

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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.