Home / 28,510.02-42,766.79-10,979.87

Finding the Fourth Proportional to 28,510.02, 42,766.79 and 10,979.87

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Solution

The fourth proportional to 28,510.02, 42,766.79 and 10,979.87 is: 16,470.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,510.02 : 42,766.79 = 10,979.87 : x
  2. Step 2: Convert to fraction form
    28,510.02/42,766.79 = 10,979.87/x
  3. Step 3: Cross multiply
    28,510.02x = 42,766.79 × 10,979.87
  4. Step 4: Simplify right side
    28,510.02x = 469,573,525.78
  5. Step 5: Solve for x
    x = 469,573,525.78/28,510.02
  6. Step 6: Final answer
    x = 16,470.47

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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.