Home / 14,141.04-21,208.79-13,438.46

Finding the Fourth Proportional to 14,141.04, 21,208.79 and 13,438.46

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Solution

The fourth proportional to 14,141.04, 21,208.79 and 13,438.46 is: 20,155.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,141.04 : 21,208.79 = 13,438.46 : x
  2. Step 2: Convert to fraction form
    14,141.04/21,208.79 = 13,438.46/x
  3. Step 3: Cross multiply
    14,141.04x = 21,208.79 × 13,438.46
  4. Step 4: Simplify right side
    14,141.04x = 285,013,302.83
  5. Step 5: Solve for x
    x = 285,013,302.83/14,141.04
  6. Step 6: Final answer
    x = 20,155.05

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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.