Home / 35,905.10-53,860.05-12,212.30

Finding the Fourth Proportional to 35,905.10, 53,860.05 and 12,212.30

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Solution

The fourth proportional to 35,905.10, 53,860.05 and 12,212.30 is: 18,319.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,905.10 : 53,860.05 = 12,212.30 : x
  2. Step 2: Convert to fraction form
    35,905.10/53,860.05 = 12,212.30/x
  3. Step 3: Cross multiply
    35,905.10x = 53,860.05 × 12,212.30
  4. Step 4: Simplify right side
    35,905.10x = 657,755,088.62
  5. Step 5: Solve for x
    x = 657,755,088.62/35,905.10
  6. Step 6: Final answer
    x = 18,319.27

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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.