Home / 51,424.16-77,141.70-13,984.84

Finding the Fourth Proportional to 51,424.16, 77,141.70 and 13,984.84

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Solution

The fourth proportional to 51,424.16, 77,141.70 and 13,984.84 is: 20,978.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,424.16 : 77,141.70 = 13,984.84 : x
  2. Step 2: Convert to fraction form
    51,424.16/77,141.70 = 13,984.84/x
  3. Step 3: Cross multiply
    51,424.16x = 77,141.70 × 13,984.84
  4. Step 4: Simplify right side
    51,424.16x = 1,078,814,428.26
  5. Step 5: Solve for x
    x = 1,078,814,428.26/51,424.16
  6. Step 6: Final answer
    x = 20,978.75

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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.