Home / 25,038.86-34,553.64-13,709.09

Finding the Fourth Proportional to 25,038.86, 34,553.64 and 13,709.09

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Solution

The fourth proportional to 25,038.86, 34,553.64 and 13,709.09 is: 18,918.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,038.86 : 34,553.64 = 13,709.09 : x
  2. Step 2: Convert to fraction form
    25,038.86/34,553.64 = 13,709.09/x
  3. Step 3: Cross multiply
    25,038.86x = 34,553.64 × 13,709.09
  4. Step 4: Simplify right side
    25,038.86x = 473,698,719.27
  5. Step 5: Solve for x
    x = 473,698,719.27/25,038.86
  6. Step 6: Final answer
    x = 18,918.55

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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.