Home / 14,878.85-20,507.24-14,178.15

Finding the Fourth Proportional to 14,878.85, 20,507.24 and 14,178.15

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Solution

The fourth proportional to 14,878.85, 20,507.24 and 14,178.15 is: 19,541.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,878.85 : 20,507.24 = 14,178.15 : x
  2. Step 2: Convert to fraction form
    14,878.85/20,507.24 = 14,178.15/x
  3. Step 3: Cross multiply
    14,878.85x = 20,507.24 × 14,178.15
  4. Step 4: Simplify right side
    14,878.85x = 290,754,653.92
  5. Step 5: Solve for x
    x = 290,754,653.92/14,878.85
  6. Step 6: Final answer
    x = 19,541.48

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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.