Home / 20,289,639.67-27,996,713.31-12,338,125.63

Finding the Fourth Proportional to 20,289,639.67, 27,996,713.31 and 12,338,125.63

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Solution

The fourth proportional to 20,289,639.67, 27,996,713.31 and 12,338,125.63 is: 17,024,795.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,289,639.67 : 27,996,713.31 = 12,338,125.63 : x
  2. Step 2: Convert to fraction form
    20,289,639.67/27,996,713.31 = 12,338,125.63/x
  3. Step 3: Cross multiply
    20,289,639.67x = 27,996,713.31 × 12,338,125.63
  4. Step 4: Simplify right side
    20,289,639.67x = 345,426,966,045,873.12
  5. Step 5: Solve for x
    x = 345,426,966,045,873.12/20,289,639.67
  6. Step 6: Final answer
    x = 17,024,795.49

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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.