Home / 39,931.99-59,905.15-13,630.58

Finding the Fourth Proportional to 39,931.99, 59,905.15 and 13,630.58

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Solution

The fourth proportional to 39,931.99, 59,905.15 and 13,630.58 is: 20,448.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,931.99 : 59,905.15 = 13,630.58 : x
  2. Step 2: Convert to fraction form
    39,931.99/59,905.15 = 13,630.58/x
  3. Step 3: Cross multiply
    39,931.99x = 59,905.15 × 13,630.58
  4. Step 4: Simplify right side
    39,931.99x = 816,541,907.20
  5. Step 5: Solve for x
    x = 816,541,907.20/39,931.99
  6. Step 6: Final answer
    x = 20,448.32

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1.5x scale

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.