Home / 30,984.47-42,758.60-17,556.63

Finding the Fourth Proportional to 30,984.47, 42,758.60 and 17,556.63

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Solution

The fourth proportional to 30,984.47, 42,758.60 and 17,556.63 is: 24,228.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,984.47 : 42,758.60 = 17,556.63 : x
  2. Step 2: Convert to fraction form
    30,984.47/42,758.60 = 17,556.63/x
  3. Step 3: Cross multiply
    30,984.47x = 42,758.60 × 17,556.63
  4. Step 4: Simplify right side
    30,984.47x = 750,696,831.73
  5. Step 5: Solve for x
    x = 750,696,831.73/30,984.47
  6. Step 6: Final answer
    x = 24,228.17

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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.