Home / 28,498.02-42,746.49-7,721.58

Finding the Fourth Proportional to 28,498.02, 42,746.49 and 7,721.58

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Solution

The fourth proportional to 28,498.02, 42,746.49 and 7,721.58 is: 11,582.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,498.02 : 42,746.49 = 7,721.58 : x
  2. Step 2: Convert to fraction form
    28,498.02/42,746.49 = 7,721.58/x
  3. Step 3: Cross multiply
    28,498.02x = 42,746.49 × 7,721.58
  4. Step 4: Simplify right side
    28,498.02x = 330,070,442.25
  5. Step 5: Solve for x
    x = 330,070,442.25/28,498.02
  6. Step 6: Final answer
    x = 11,582.22

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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.