Home / 34,964.40-52,415.12-12,762.20

Finding the Fourth Proportional to 34,964.40, 52,415.12 and 12,762.20

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Solution

The fourth proportional to 34,964.40, 52,415.12 and 12,762.20 is: 19,131.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,964.40 : 52,415.12 = 12,762.20 : x
  2. Step 2: Convert to fraction form
    34,964.40/52,415.12 = 12,762.20/x
  3. Step 3: Cross multiply
    34,964.40x = 52,415.12 × 12,762.20
  4. Step 4: Simplify right side
    34,964.40x = 668,931,918.58
  5. Step 5: Solve for x
    x = 668,931,918.58/34,964.40
  6. Step 6: Final answer
    x = 19,131.80

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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.