Home / 22,455.84-30,987.73-12,384.40

Finding the Fourth Proportional to 22,455.84, 30,987.73 and 12,384.40

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Solution

The fourth proportional to 22,455.84, 30,987.73 and 12,384.40 is: 17,089.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,455.84 : 30,987.73 = 12,384.40 : x
  2. Step 2: Convert to fraction form
    22,455.84/30,987.73 = 12,384.40/x
  3. Step 3: Cross multiply
    22,455.84x = 30,987.73 × 12,384.40
  4. Step 4: Simplify right side
    22,455.84x = 383,764,443.41
  5. Step 5: Solve for x
    x = 383,764,443.41/22,455.84
  6. Step 6: Final answer
    x = 17,089.74

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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.