Home / 13,948.20-20,922.30-13,802.40

Finding the Fourth Proportional to 13,948.20, 20,922.30 and 13,802.40

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Solution

The fourth proportional to 13,948.20, 20,922.30 and 13,802.40 is: 20,703.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,948.20 : 20,922.30 = 13,802.40 : x
  2. Step 2: Convert to fraction form
    13,948.20/20,922.30 = 13,802.40/x
  3. Step 3: Cross multiply
    13,948.20x = 20,922.30 × 13,802.40
  4. Step 4: Simplify right side
    13,948.20x = 288,777,953.52
  5. Step 5: Solve for x
    x = 288,777,953.52/13,948.20
  6. Step 6: Final answer
    x = 20,703.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.