Home / 35,178.48-52,768.40-12,980.43

Finding the Fourth Proportional to 35,178.48, 52,768.40 and 12,980.43

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Solution

The fourth proportional to 35,178.48, 52,768.40 and 12,980.43 is: 19,470.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,178.48 : 52,768.40 = 12,980.43 : x
  2. Step 2: Convert to fraction form
    35,178.48/52,768.40 = 12,980.43/x
  3. Step 3: Cross multiply
    35,178.48x = 52,768.40 × 12,980.43
  4. Step 4: Simplify right side
    35,178.48x = 684,956,457.51
  5. Step 5: Solve for x
    x = 684,956,457.51/35,178.48
  6. Step 6: Final answer
    x = 19,470.89

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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.