Home / 13,954.23-20,931.32-13,253.47

Finding the Fourth Proportional to 13,954.23, 20,931.32 and 13,253.47

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Solution

The fourth proportional to 13,954.23, 20,931.32 and 13,253.47 is: 19,880.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,954.23 : 20,931.32 = 13,253.47 : x
  2. Step 2: Convert to fraction form
    13,954.23/20,931.32 = 13,253.47/x
  3. Step 3: Cross multiply
    13,954.23x = 20,931.32 × 13,253.47
  4. Step 4: Simplify right side
    13,954.23x = 277,412,602.49
  5. Step 5: Solve for x
    x = 277,412,602.49/13,954.23
  6. Step 6: Final answer
    x = 19,880.18

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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.