Home / 28,818.88-39,802.85-19,371.04

Finding the Fourth Proportional to 28,818.88, 39,802.85 and 19,371.04

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Solution

The fourth proportional to 28,818.88, 39,802.85 and 19,371.04 is: 26,754.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,818.88 : 39,802.85 = 19,371.04 : x
  2. Step 2: Convert to fraction form
    28,818.88/39,802.85 = 19,371.04/x
  3. Step 3: Cross multiply
    28,818.88x = 39,802.85 × 19,371.04
  4. Step 4: Simplify right side
    28,818.88x = 771,022,599.46
  5. Step 5: Solve for x
    x = 771,022,599.46/28,818.88
  6. Step 6: Final answer
    x = 26,754.08

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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.