Home / 28,459.74-39,274.03-15,713.08

Finding the Fourth Proportional to 28,459.74, 39,274.03 and 15,713.08

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Solution

The fourth proportional to 28,459.74, 39,274.03 and 15,713.08 is: 21,683.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,459.74 : 39,274.03 = 15,713.08 : x
  2. Step 2: Convert to fraction form
    28,459.74/39,274.03 = 15,713.08/x
  3. Step 3: Cross multiply
    28,459.74x = 39,274.03 × 15,713.08
  4. Step 4: Simplify right side
    28,459.74x = 617,115,936.03
  5. Step 5: Solve for x
    x = 617,115,936.03/28,459.74
  6. Step 6: Final answer
    x = 21,683.82

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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.