Home / 35,331.45-52,991.10-13,133.40

Finding the Fourth Proportional to 35,331.45, 52,991.10 and 13,133.40

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Solution

The fourth proportional to 35,331.45, 52,991.10 and 13,133.40 is: 19,697.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,331.45 : 52,991.10 = 13,133.40 : x
  2. Step 2: Convert to fraction form
    35,331.45/52,991.10 = 13,133.40/x
  3. Step 3: Cross multiply
    35,331.45x = 52,991.10 × 13,133.40
  4. Step 4: Simplify right side
    35,331.45x = 695,953,312.74
  5. Step 5: Solve for x
    x = 695,953,312.74/35,331.45
  6. Step 6: Final answer
    x = 19,697.84

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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.