Home / 14,020.47-21,030.78-4,159.85

Finding the Fourth Proportional to 14,020.47, 21,030.78 and 4,159.85

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Solution

The fourth proportional to 14,020.47, 21,030.78 and 4,159.85 is: 6,239.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,020.47 : 21,030.78 = 4,159.85 : x
  2. Step 2: Convert to fraction form
    14,020.47/21,030.78 = 4,159.85/x
  3. Step 3: Cross multiply
    14,020.47x = 21,030.78 × 4,159.85
  4. Step 4: Simplify right side
    14,020.47x = 87,484,785.03
  5. Step 5: Solve for x
    x = 87,484,785.03/14,020.47
  6. Step 6: Final answer
    x = 6,239.79

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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.