Home / 30,913.20-42,660.54-17,484.60

Finding the Fourth Proportional to 30,913.20, 42,660.54 and 17,484.60

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Solution

The fourth proportional to 30,913.20, 42,660.54 and 17,484.60 is: 24,128.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,913.20 : 42,660.54 = 17,484.60 : x
  2. Step 2: Convert to fraction form
    30,913.20/42,660.54 = 17,484.60/x
  3. Step 3: Cross multiply
    30,913.20x = 42,660.54 × 17,484.60
  4. Step 4: Simplify right side
    30,913.20x = 745,902,477.68
  5. Step 5: Solve for x
    x = 745,902,477.68/30,913.20
  6. Step 6: Final answer
    x = 24,128.93

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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.