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Finding the Fourth Proportional to 28,653.99, 42,998.01 and 15,506.07

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Solution

The fourth proportional to 28,653.99, 42,998.01 and 15,506.07 is: 23,268.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,653.99 : 42,998.01 = 15,506.07 : x
  2. Step 2: Convert to fraction form
    28,653.99/42,998.01 = 15,506.07/x
  3. Step 3: Cross multiply
    28,653.99x = 42,998.01 × 15,506.07
  4. Step 4: Simplify right side
    28,653.99x = 666,730,152.92
  5. Step 5: Solve for x
    x = 666,730,152.92/28,653.99
  6. Step 6: Final answer
    x = 23,268.32

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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.