Home / 28,457.46-39,273.45-15,713.07

Finding the Fourth Proportional to 28,457.46, 39,273.45 and 15,713.07

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Solution

The fourth proportional to 28,457.46, 39,273.45 and 15,713.07 is: 21,685.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,457.46 : 39,273.45 = 15,713.07 : x
  2. Step 2: Convert to fraction form
    28,457.46/39,273.45 = 15,713.07/x
  3. Step 3: Cross multiply
    28,457.46x = 39,273.45 × 15,713.07
  4. Step 4: Simplify right side
    28,457.46x = 617,106,468.99
  5. Step 5: Solve for x
    x = 617,106,468.99/28,457.46
  6. Step 6: Final answer
    x = 21,685.23

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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.