Home / 22,858.20-31,478.50-18,842.40

Finding the Fourth Proportional to 22,858.20, 31,478.50 and 18,842.40

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Solution

The fourth proportional to 22,858.20, 31,478.50 and 18,842.40 is: 25,948.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,858.20 : 31,478.50 = 18,842.40 : x
  2. Step 2: Convert to fraction form
    22,858.20/31,478.50 = 18,842.40/x
  3. Step 3: Cross multiply
    22,858.20x = 31,478.50 × 18,842.40
  4. Step 4: Simplify right side
    22,858.20x = 593,130,370.43
  5. Step 5: Solve for x
    x = 593,130,370.43/22,858.20
  6. Step 6: Final answer
    x = 25,948.25

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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.