Home / 42,989.01-64,485.58-18,029.87

Finding the Fourth Proportional to 42,989.01, 64,485.58 and 18,029.87

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Solution

The fourth proportional to 42,989.01, 64,485.58 and 18,029.87 is: 27,045.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,989.01 : 64,485.58 = 18,029.87 : x
  2. Step 2: Convert to fraction form
    42,989.01/64,485.58 = 18,029.87/x
  3. Step 3: Cross multiply
    42,989.01x = 64,485.58 × 18,029.87
  4. Step 4: Simplify right side
    42,989.01x = 1,162,666,624.27
  5. Step 5: Solve for x
    x = 1,162,666,624.27/42,989.01
  6. Step 6: Final answer
    x = 27,045.67

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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.