Home / 30,159.12-41,592.31-18,829.65

Finding the Fourth Proportional to 30,159.12, 41,592.31 and 18,829.65

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Solution

The fourth proportional to 30,159.12, 41,592.31 and 18,829.65 is: 25,967.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,159.12 : 41,592.31 = 18,829.65 : x
  2. Step 2: Convert to fraction form
    30,159.12/41,592.31 = 18,829.65/x
  3. Step 3: Cross multiply
    30,159.12x = 41,592.31 × 18,829.65
  4. Step 4: Simplify right side
    30,159.12x = 783,168,639.99
  5. Step 5: Solve for x
    x = 783,168,639.99/30,159.12
  6. Step 6: Final answer
    x = 25,967.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.