Home / 28,256.22-39,000.75-19,307.34

Finding the Fourth Proportional to 28,256.22, 39,000.75 and 19,307.34

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Solution

The fourth proportional to 28,256.22, 39,000.75 and 19,307.34 is: 26,649.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,256.22 : 39,000.75 = 19,307.34 : x
  2. Step 2: Convert to fraction form
    28,256.22/39,000.75 = 19,307.34/x
  3. Step 3: Cross multiply
    28,256.22x = 39,000.75 × 19,307.34
  4. Step 4: Simplify right side
    28,256.22x = 753,000,740.51
  5. Step 5: Solve for x
    x = 753,000,740.51/28,256.22
  6. Step 6: Final answer
    x = 26,649.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.