Home / 25,319.57-34,939.20-13,988.94

Finding the Fourth Proportional to 25,319.57, 34,939.20 and 13,988.94

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Solution

The fourth proportional to 25,319.57, 34,939.20 and 13,988.94 is: 19,303.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,319.57 : 34,939.20 = 13,988.94 : x
  2. Step 2: Convert to fraction form
    25,319.57/34,939.20 = 13,988.94/x
  3. Step 3: Cross multiply
    25,319.57x = 34,939.20 × 13,988.94
  4. Step 4: Simplify right side
    25,319.57x = 488,762,451.12
  5. Step 5: Solve for x
    x = 488,762,451.12/25,319.57
  6. Step 6: Final answer
    x = 19,303.75

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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.