Home / 19,128.72-26,386.98-17,775.62

Finding the Fourth Proportional to 19,128.72, 26,386.98 and 17,775.62

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Solution

The fourth proportional to 19,128.72, 26,386.98 and 17,775.62 is: 24,520.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,128.72 : 26,386.98 = 17,775.62 : x
  2. Step 2: Convert to fraction form
    19,128.72/26,386.98 = 17,775.62/x
  3. Step 3: Cross multiply
    19,128.72x = 26,386.98 × 17,775.62
  4. Step 4: Simplify right side
    19,128.72x = 469,044,929.43
  5. Step 5: Solve for x
    x = 469,044,929.43/19,128.72
  6. Step 6: Final answer
    x = 24,520.46

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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.