Home / 35,203.60-52,749.84-12,986.40

Finding the Fourth Proportional to 35,203.60, 52,749.84 and 12,986.40

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Solution

The fourth proportional to 35,203.60, 52,749.84 and 12,986.40 is: 19,459.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,203.60 : 52,749.84 = 12,986.40 : x
  2. Step 2: Convert to fraction form
    35,203.60/52,749.84 = 12,986.40/x
  3. Step 3: Cross multiply
    35,203.60x = 52,749.84 × 12,986.40
  4. Step 4: Simplify right side
    35,203.60x = 685,030,522.18
  5. Step 5: Solve for x
    x = 685,030,522.18/35,203.60
  6. Step 6: Final answer
    x = 19,459.10

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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.