Home / 39,168.86-58,754.66-12,875.63

Finding the Fourth Proportional to 39,168.86, 58,754.66 and 12,875.63

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Solution

The fourth proportional to 39,168.86, 58,754.66 and 12,875.63 is: 19,313.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,168.86 : 58,754.66 = 12,875.63 : x
  2. Step 2: Convert to fraction form
    39,168.86/58,754.66 = 12,875.63/x
  3. Step 3: Cross multiply
    39,168.86x = 58,754.66 × 12,875.63
  4. Step 4: Simplify right side
    39,168.86x = 756,502,904.78
  5. Step 5: Solve for x
    x = 756,502,904.78/39,168.86
  6. Step 6: Final answer
    x = 19,313.89

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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.