Home / 28,370.17-39,150.26-15,622.70

Finding the Fourth Proportional to 28,370.17, 39,150.26 and 15,622.70

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Solution

The fourth proportional to 28,370.17, 39,150.26 and 15,622.70 is: 21,559.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,370.17 : 39,150.26 = 15,622.70 : x
  2. Step 2: Convert to fraction form
    28,370.17/39,150.26 = 15,622.70/x
  3. Step 3: Cross multiply
    28,370.17x = 39,150.26 × 15,622.70
  4. Step 4: Simplify right side
    28,370.17x = 611,632,705.67
  5. Step 5: Solve for x
    x = 611,632,705.67/28,370.17
  6. Step 6: Final answer
    x = 21,559.00

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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.