Home / 39,790.40-59,692.80-16,419.20

Finding the Fourth Proportional to 39,790.40, 59,692.80 and 16,419.20

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Solution

The fourth proportional to 39,790.40, 59,692.80 and 16,419.20 is: 24,631.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,790.40 : 59,692.80 = 16,419.20 : x
  2. Step 2: Convert to fraction form
    39,790.40/59,692.80 = 16,419.20/x
  3. Step 3: Cross multiply
    39,790.40x = 59,692.80 × 16,419.20
  4. Step 4: Simplify right side
    39,790.40x = 980,108,021.76
  5. Step 5: Solve for x
    x = 980,108,021.76/39,790.40
  6. Step 6: Final answer
    x = 24,631.77

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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.