Home / 25,689.86-35,451.90-14,359.36

Finding the Fourth Proportional to 25,689.86, 35,451.90 and 14,359.36

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Solution

The fourth proportional to 25,689.86, 35,451.90 and 14,359.36 is: 19,815.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,689.86 : 35,451.90 = 14,359.36 : x
  2. Step 2: Convert to fraction form
    25,689.86/35,451.90 = 14,359.36/x
  3. Step 3: Cross multiply
    25,689.86x = 35,451.90 × 14,359.36
  4. Step 4: Simplify right side
    25,689.86x = 509,066,594.78
  5. Step 5: Solve for x
    x = 509,066,594.78/25,689.86
  6. Step 6: Final answer
    x = 19,815.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.