Home / 39,172.40-58,736.76-12,875.12

Finding the Fourth Proportional to 39,172.40, 58,736.76 and 12,875.12

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Solution

The fourth proportional to 39,172.40, 58,736.76 and 12,875.12 is: 19,305.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,172.40 : 58,736.76 = 12,875.12 : x
  2. Step 2: Convert to fraction form
    39,172.40/58,736.76 = 12,875.12/x
  3. Step 3: Cross multiply
    39,172.40x = 58,736.76 × 12,875.12
  4. Step 4: Simplify right side
    39,172.40x = 756,242,833.41
  5. Step 5: Solve for x
    x = 756,242,833.41/39,172.40
  6. Step 6: Final answer
    x = 19,305.50

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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.