Home / 28,439.07-39,192.77-20,467.46

Finding the Fourth Proportional to 28,439.07, 39,192.77 and 20,467.46

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Solution

The fourth proportional to 28,439.07, 39,192.77 and 20,467.46 is: 28,206.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,439.07 : 39,192.77 = 20,467.46 : x
  2. Step 2: Convert to fraction form
    28,439.07/39,192.77 = 20,467.46/x
  3. Step 3: Cross multiply
    28,439.07x = 39,192.77 × 20,467.46
  4. Step 4: Simplify right side
    28,439.07x = 802,176,307.47
  5. Step 5: Solve for x
    x = 802,176,307.47/28,439.07
  6. Step 6: Final answer
    x = 28,206.84

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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.