Home / 30,384-41,931.56-17,812.80

Finding the Fourth Proportional to 30,384, 41,931.56 and 17,812.80

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Solution

The fourth proportional to 30,384, 41,931.56 and 17,812.80 is: 24,582.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,384 : 41,931.56 = 17,812.80 : x
  2. Step 2: Convert to fraction form
    30,384/41,931.56 = 17,812.80/x
  3. Step 3: Cross multiply
    30,384x = 41,931.56 × 17,812.80
  4. Step 4: Simplify right side
    30,384x = 746,918,491.97
  5. Step 5: Solve for x
    x = 746,918,491.97/30,384
  6. Step 6: Final answer
    x = 24,582.63

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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.