Home / 28,240.74-38,969.37-16,307.88

Finding the Fourth Proportional to 28,240.74, 38,969.37 and 16,307.88

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Solution

The fourth proportional to 28,240.74, 38,969.37 and 16,307.88 is: 22,503.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,240.74 : 38,969.37 = 16,307.88 : x
  2. Step 2: Convert to fraction form
    28,240.74/38,969.37 = 16,307.88/x
  3. Step 3: Cross multiply
    28,240.74x = 38,969.37 × 16,307.88
  4. Step 4: Simplify right side
    28,240.74x = 635,507,809.64
  5. Step 5: Solve for x
    x = 635,507,809.64/28,240.74
  6. Step 6: Final answer
    x = 22,503.23

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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.