Home / 30,550.65-42,159.20-17,803.02

Finding the Fourth Proportional to 30,550.65, 42,159.20 and 17,803.02

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Solution

The fourth proportional to 30,550.65, 42,159.20 and 17,803.02 is: 24,567.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,550.65 : 42,159.20 = 17,803.02 : x
  2. Step 2: Convert to fraction form
    30,550.65/42,159.20 = 17,803.02/x
  3. Step 3: Cross multiply
    30,550.65x = 42,159.20 × 17,803.02
  4. Step 4: Simplify right side
    30,550.65x = 750,560,991.77
  5. Step 5: Solve for x
    x = 750,560,991.77/30,550.65
  6. Step 6: Final answer
    x = 24,567.76

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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.