Home / 18,465.84-27,711.72-14,315.40

Finding the Fourth Proportional to 18,465.84, 27,711.72 and 14,315.40

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Solution

The fourth proportional to 18,465.84, 27,711.72 and 14,315.40 is: 21,483.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,465.84 : 27,711.72 = 14,315.40 : x
  2. Step 2: Convert to fraction form
    18,465.84/27,711.72 = 14,315.40/x
  3. Step 3: Cross multiply
    18,465.84x = 27,711.72 × 14,315.40
  4. Step 4: Simplify right side
    18,465.84x = 396,704,356.49
  5. Step 5: Solve for x
    x = 396,704,356.49/18,465.84
  6. Step 6: Final answer
    x = 21,483.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.