Home / 28,760.79-43,048.23-17,689.71

Finding the Fourth Proportional to 28,760.79, 43,048.23 and 17,689.71

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Solution

The fourth proportional to 28,760.79, 43,048.23 and 17,689.71 is: 26,477.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,760.79 : 43,048.23 = 17,689.71 : x
  2. Step 2: Convert to fraction form
    28,760.79/43,048.23 = 17,689.71/x
  3. Step 3: Cross multiply
    28,760.79x = 43,048.23 × 17,689.71
  4. Step 4: Simplify right side
    28,760.79x = 761,510,704.71
  5. Step 5: Solve for x
    x = 761,510,704.71/28,760.79
  6. Step 6: Final answer
    x = 26,477.39

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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.