Home / 28,053.94-38,715.24-15,479.50

Finding the Fourth Proportional to 28,053.94, 38,715.24 and 15,479.50

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Solution

The fourth proportional to 28,053.94, 38,715.24 and 15,479.50 is: 21,362.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,053.94 : 38,715.24 = 15,479.50 : x
  2. Step 2: Convert to fraction form
    28,053.94/38,715.24 = 15,479.50/x
  3. Step 3: Cross multiply
    28,053.94x = 38,715.24 × 15,479.50
  4. Step 4: Simplify right side
    28,053.94x = 599,292,518.84
  5. Step 5: Solve for x
    x = 599,292,518.84/28,053.94
  6. Step 6: Final answer
    x = 21,362.15

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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.