Home / 22,740.99-31,384.87-12,671.07

Finding the Fourth Proportional to 22,740.99, 31,384.87 and 12,671.07

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Solution

The fourth proportional to 22,740.99, 31,384.87 and 12,671.07 is: 17,487.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,740.99 : 31,384.87 = 12,671.07 : x
  2. Step 2: Convert to fraction form
    22,740.99/31,384.87 = 12,671.07/x
  3. Step 3: Cross multiply
    22,740.99x = 31,384.87 × 12,671.07
  4. Step 4: Simplify right side
    22,740.99x = 397,679,884.71
  5. Step 5: Solve for x
    x = 397,679,884.71/22,740.99
  6. Step 6: Final answer
    x = 17,487.36

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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.