Home / 30,641.19-42,289.44-18,711.41

Finding the Fourth Proportional to 30,641.19, 42,289.44 and 18,711.41

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Solution

The fourth proportional to 30,641.19, 42,289.44 and 18,711.41 is: 25,824.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,641.19 : 42,289.44 = 18,711.41 : x
  2. Step 2: Convert to fraction form
    30,641.19/42,289.44 = 18,711.41/x
  3. Step 3: Cross multiply
    30,641.19x = 42,289.44 × 18,711.41
  4. Step 4: Simplify right side
    30,641.19x = 791,294,839.06
  5. Step 5: Solve for x
    x = 791,294,839.06/30,641.19
  6. Step 6: Final answer
    x = 25,824.55

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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.