Home / 19,971.48-29,846.68-18,819.12

Finding the Fourth Proportional to 19,971.48, 29,846.68 and 18,819.12

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Solution

The fourth proportional to 19,971.48, 29,846.68 and 18,819.12 is: 28,124.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,971.48 : 29,846.68 = 18,819.12 : x
  2. Step 2: Convert to fraction form
    19,971.48/29,846.68 = 18,819.12/x
  3. Step 3: Cross multiply
    19,971.48x = 29,846.68 × 18,819.12
  4. Step 4: Simplify right side
    19,971.48x = 561,688,252.52
  5. Step 5: Solve for x
    x = 561,688,252.52/19,971.48
  6. Step 6: Final answer
    x = 28,124.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.