Home / 28,525.81-39,352.36-18,457.50

Finding the Fourth Proportional to 28,525.81, 39,352.36 and 18,457.50

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Solution

The fourth proportional to 28,525.81, 39,352.36 and 18,457.50 is: 25,462.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,525.81 : 39,352.36 = 18,457.50 : x
  2. Step 2: Convert to fraction form
    28,525.81/39,352.36 = 18,457.50/x
  3. Step 3: Cross multiply
    28,525.81x = 39,352.36 × 18,457.50
  4. Step 4: Simplify right side
    28,525.81x = 726,345,936.79
  5. Step 5: Solve for x
    x = 726,345,936.79/28,525.81
  6. Step 6: Final answer
    x = 25,462.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.