Home / 28,510.28-42,762.68-8,783.54

Finding the Fourth Proportional to 28,510.28, 42,762.68 and 8,783.54

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Solution

The fourth proportional to 28,510.28, 42,762.68 and 8,783.54 is: 13,174.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,510.28 : 42,762.68 = 8,783.54 : x
  2. Step 2: Convert to fraction form
    28,510.28/42,762.68 = 8,783.54/x
  3. Step 3: Cross multiply
    28,510.28x = 42,762.68 × 8,783.54
  4. Step 4: Simplify right side
    28,510.28x = 375,607,695.26
  5. Step 5: Solve for x
    x = 375,607,695.26/28,510.28
  6. Step 6: Final answer
    x = 13,174.47

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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.