Home / 28,256.72-39,001.44-19,307.84

Finding the Fourth Proportional to 28,256.72, 39,001.44 and 19,307.84

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Solution

The fourth proportional to 28,256.72, 39,001.44 and 19,307.84 is: 26,649.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,256.72 : 39,001.44 = 19,307.84 : x
  2. Step 2: Convert to fraction form
    28,256.72/39,001.44 = 19,307.84/x
  3. Step 3: Cross multiply
    28,256.72x = 39,001.44 × 19,307.84
  4. Step 4: Simplify right side
    28,256.72x = 753,033,563.29
  5. Step 5: Solve for x
    x = 753,033,563.29/28,256.72
  6. Step 6: Final answer
    x = 26,649.72

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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.