Home / 28,541.28-42,812.04-7,764.76

Finding the Fourth Proportional to 28,541.28, 42,812.04 and 7,764.76

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Solution

The fourth proportional to 28,541.28, 42,812.04 and 7,764.76 is: 11,647.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,541.28 : 42,812.04 = 7,764.76 : x
  2. Step 2: Convert to fraction form
    28,541.28/42,812.04 = 7,764.76/x
  3. Step 3: Cross multiply
    28,541.28x = 42,812.04 × 7,764.76
  4. Step 4: Simplify right side
    28,541.28x = 332,425,215.71
  5. Step 5: Solve for x
    x = 332,425,215.71/28,541.28
  6. Step 6: Final answer
    x = 11,647.17

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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.