Home / 19,005.10-28,459.05-14,047.90

Finding the Fourth Proportional to 19,005.10, 28,459.05 and 14,047.90

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Solution

The fourth proportional to 19,005.10, 28,459.05 and 14,047.90 is: 21,035.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,005.10 : 28,459.05 = 14,047.90 : x
  2. Step 2: Convert to fraction form
    19,005.10/28,459.05 = 14,047.90/x
  3. Step 3: Cross multiply
    19,005.10x = 28,459.05 × 14,047.90
  4. Step 4: Simplify right side
    19,005.10x = 399,789,888.50
  5. Step 5: Solve for x
    x = 399,789,888.50/19,005.10
  6. Step 6: Final answer
    x = 21,035.93

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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.