Home / 39,631.28-59,429.64-14,990

Finding the Fourth Proportional to 39,631.28, 59,429.64 and 14,990

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Solution

The fourth proportional to 39,631.28, 59,429.64 and 14,990 is: 22,478.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,631.28 : 59,429.64 = 14,990 : x
  2. Step 2: Convert to fraction form
    39,631.28/59,429.64 = 14,990/x
  3. Step 3: Cross multiply
    39,631.28x = 59,429.64 × 14,990
  4. Step 4: Simplify right side
    39,631.28x = 890,850,303.60
  5. Step 5: Solve for x
    x = 890,850,303.60/39,631.28
  6. Step 6: Final answer
    x = 22,478.46

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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.