Home / 28,573.03-39,430.90-15,825.93

Finding the Fourth Proportional to 28,573.03, 39,430.90 and 15,825.93

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Solution

The fourth proportional to 28,573.03, 39,430.90 and 15,825.93 is: 21,839.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,573.03 : 39,430.90 = 15,825.93 : x
  2. Step 2: Convert to fraction form
    28,573.03/39,430.90 = 15,825.93/x
  3. Step 3: Cross multiply
    28,573.03x = 39,430.90 × 15,825.93
  4. Step 4: Simplify right side
    28,573.03x = 624,030,756.95
  5. Step 5: Solve for x
    x = 624,030,756.95/28,573.03
  6. Step 6: Final answer
    x = 21,839.85

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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.