Home / 28,000.15-42,001.45-13,021.34

Finding the Fourth Proportional to 28,000.15, 42,001.45 and 13,021.34

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Solution

The fourth proportional to 28,000.15, 42,001.45 and 13,021.34 is: 19,532.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,000.15 : 42,001.45 = 13,021.34 : x
  2. Step 2: Convert to fraction form
    28,000.15/42,001.45 = 13,021.34/x
  3. Step 3: Cross multiply
    28,000.15x = 42,001.45 × 13,021.34
  4. Step 4: Simplify right side
    28,000.15x = 546,914,918.38
  5. Step 5: Solve for x
    x = 546,914,918.38/28,000.15
  6. Step 6: Final answer
    x = 19,532.57

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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.