Home / 28,173.52-38,880.76-15,598.54

Finding the Fourth Proportional to 28,173.52, 38,880.76 and 15,598.54

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Solution

The fourth proportional to 28,173.52, 38,880.76 and 15,598.54 is: 21,526.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,173.52 : 38,880.76 = 15,598.54 : x
  2. Step 2: Convert to fraction form
    28,173.52/38,880.76 = 15,598.54/x
  3. Step 3: Cross multiply
    28,173.52x = 38,880.76 × 15,598.54
  4. Step 4: Simplify right side
    28,173.52x = 606,482,895.69
  5. Step 5: Solve for x
    x = 606,482,895.69/28,173.52
  6. Step 6: Final answer
    x = 21,526.70

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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.