Home / 19,060-28,558.42-13,485.72

Finding the Fourth Proportional to 19,060, 28,558.42 and 13,485.72

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Solution

The fourth proportional to 19,060, 28,558.42 and 13,485.72 is: 20,206.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,060 : 28,558.42 = 13,485.72 : x
  2. Step 2: Convert to fraction form
    19,060/28,558.42 = 13,485.72/x
  3. Step 3: Cross multiply
    19,060x = 28,558.42 × 13,485.72
  4. Step 4: Simplify right side
    19,060x = 385,130,855.76
  5. Step 5: Solve for x
    x = 385,130,855.76/19,060
  6. Step 6: Final answer
    x = 20,206.24

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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.