Home / 28,370.16-39,150.49-15,623.08

Finding the Fourth Proportional to 28,370.16, 39,150.49 and 15,623.08

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Solution

The fourth proportional to 28,370.16, 39,150.49 and 15,623.08 is: 21,559.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,370.16 : 39,150.49 = 15,623.08 : x
  2. Step 2: Convert to fraction form
    28,370.16/39,150.49 = 15,623.08/x
  3. Step 3: Cross multiply
    28,370.16x = 39,150.49 × 15,623.08
  4. Step 4: Simplify right side
    28,370.16x = 611,651,237.31
  5. Step 5: Solve for x
    x = 611,651,237.31/28,370.16
  6. Step 6: Final answer
    x = 21,559.67

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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.