Home / 28,457.38-39,271.99-15,882.94

Finding the Fourth Proportional to 28,457.38, 39,271.99 and 15,882.94

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Solution

The fourth proportional to 28,457.38, 39,271.99 and 15,882.94 is: 21,918.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,457.38 : 39,271.99 = 15,882.94 : x
  2. Step 2: Convert to fraction form
    28,457.38/39,271.99 = 15,882.94/x
  3. Step 3: Cross multiply
    28,457.38x = 39,271.99 × 15,882.94
  4. Step 4: Simplify right side
    28,457.38x = 623,754,464.49
  5. Step 5: Solve for x
    x = 623,754,464.49/28,457.38
  6. Step 6: Final answer
    x = 21,918.90

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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.