Home / 28,540.17-42,810.26-9,820.67

Finding the Fourth Proportional to 28,540.17, 42,810.26 and 9,820.67

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Solution

The fourth proportional to 28,540.17, 42,810.26 and 9,820.67 is: 14,731.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,540.17 : 42,810.26 = 9,820.67 : x
  2. Step 2: Convert to fraction form
    28,540.17/42,810.26 = 9,820.67/x
  3. Step 3: Cross multiply
    28,540.17x = 42,810.26 × 9,820.67
  4. Step 4: Simplify right side
    28,540.17x = 420,425,172.92
  5. Step 5: Solve for x
    x = 420,425,172.92/28,540.17
  6. Step 6: Final answer
    x = 14,731.00

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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.