Home / 30,056.64-41,478.78-18,117.45

Finding the Fourth Proportional to 30,056.64, 41,478.78 and 18,117.45

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Solution

The fourth proportional to 30,056.64, 41,478.78 and 18,117.45 is: 25,002.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,056.64 : 41,478.78 = 18,117.45 : x
  2. Step 2: Convert to fraction form
    30,056.64/41,478.78 = 18,117.45/x
  3. Step 3: Cross multiply
    30,056.64x = 41,478.78 × 18,117.45
  4. Step 4: Simplify right side
    30,056.64x = 751,489,722.71
  5. Step 5: Solve for x
    x = 751,489,722.71/30,056.64
  6. Step 6: Final answer
    x = 25,002.45

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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.