Home / 30,743.04-42,426.97-18,802.63

Finding the Fourth Proportional to 30,743.04, 42,426.97 and 18,802.63

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Solution

The fourth proportional to 30,743.04, 42,426.97 and 18,802.63 is: 25,948.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,743.04 : 42,426.97 = 18,802.63 : x
  2. Step 2: Convert to fraction form
    30,743.04/42,426.97 = 18,802.63/x
  3. Step 3: Cross multiply
    30,743.04x = 42,426.97 × 18,802.63
  4. Step 4: Simplify right side
    30,743.04x = 797,738,406.80
  5. Step 5: Solve for x
    x = 797,738,406.80/30,743.04
  6. Step 6: Final answer
    x = 25,948.59

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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.