Home / 19,021.90-28,536.90-5,875.60

Finding the Fourth Proportional to 19,021.90, 28,536.90 and 5,875.60

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Solution

The fourth proportional to 19,021.90, 28,536.90 and 5,875.60 is: 8,814.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,021.90 : 28,536.90 = 5,875.60 : x
  2. Step 2: Convert to fraction form
    19,021.90/28,536.90 = 5,875.60/x
  3. Step 3: Cross multiply
    19,021.90x = 28,536.90 × 5,875.60
  4. Step 4: Simplify right side
    19,021.90x = 167,671,409.64
  5. Step 5: Solve for x
    x = 167,671,409.64/19,021.90
  6. Step 6: Final answer
    x = 8,814.65

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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.