Home / 43,315.80-64,980.24-18,355.95

Finding the Fourth Proportional to 43,315.80, 64,980.24 and 18,355.95

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Solution

The fourth proportional to 43,315.80, 64,980.24 and 18,355.95 is: 27,536.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,315.80 : 64,980.24 = 18,355.95 : x
  2. Step 2: Convert to fraction form
    43,315.80/64,980.24 = 18,355.95/x
  3. Step 3: Cross multiply
    43,315.80x = 64,980.24 × 18,355.95
  4. Step 4: Simplify right side
    43,315.80x = 1,192,774,036.43
  5. Step 5: Solve for x
    x = 1,192,774,036.43/43,315.80
  6. Step 6: Final answer
    x = 27,536.70

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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.