Home / 28,085.44-38,762.08-17,478.40

Finding the Fourth Proportional to 28,085.44, 38,762.08 and 17,478.40

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Solution

The fourth proportional to 28,085.44, 38,762.08 and 17,478.40 is: 24,122.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,085.44 : 38,762.08 = 17,478.40 : x
  2. Step 2: Convert to fraction form
    28,085.44/38,762.08 = 17,478.40/x
  3. Step 3: Cross multiply
    28,085.44x = 38,762.08 × 17,478.40
  4. Step 4: Simplify right side
    28,085.44x = 677,499,139.07
  5. Step 5: Solve for x
    x = 677,499,139.07/28,085.44
  6. Step 6: Final answer
    x = 24,122.79

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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.