Home / 35,688.90-53,558.01-12,315.42

Finding the Fourth Proportional to 35,688.90, 53,558.01 and 12,315.42

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Solution

The fourth proportional to 35,688.90, 53,558.01 and 12,315.42 is: 18,481.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,688.90 : 53,558.01 = 12,315.42 : x
  2. Step 2: Convert to fraction form
    35,688.90/53,558.01 = 12,315.42/x
  3. Step 3: Cross multiply
    35,688.90x = 53,558.01 × 12,315.42
  4. Step 4: Simplify right side
    35,688.90x = 659,589,387.51
  5. Step 5: Solve for x
    x = 659,589,387.51/35,688.90
  6. Step 6: Final answer
    x = 18,481.64

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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.