Home / 28,557.63-42,854.22-13,768.07

Finding the Fourth Proportional to 28,557.63, 42,854.22 and 13,768.07

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Solution

The fourth proportional to 28,557.63, 42,854.22 and 13,768.07 is: 20,660.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,557.63 : 42,854.22 = 13,768.07 : x
  2. Step 2: Convert to fraction form
    28,557.63/42,854.22 = 13,768.07/x
  3. Step 3: Cross multiply
    28,557.63x = 42,854.22 × 13,768.07
  4. Step 4: Simplify right side
    28,557.63x = 590,019,686.48
  5. Step 5: Solve for x
    x = 590,019,686.48/28,557.63
  6. Step 6: Final answer
    x = 20,660.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.