Home / 25,318.56-34,939.92-13,988.01

Finding the Fourth Proportional to 25,318.56, 34,939.92 and 13,988.01

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Solution

The fourth proportional to 25,318.56, 34,939.92 and 13,988.01 is: 19,303.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,318.56 : 34,939.92 = 13,988.01 : x
  2. Step 2: Convert to fraction form
    25,318.56/34,939.92 = 13,988.01/x
  3. Step 3: Cross multiply
    25,318.56x = 34,939.92 × 13,988.01
  4. Step 4: Simplify right side
    25,318.56x = 488,739,950.36
  5. Step 5: Solve for x
    x = 488,739,950.36/25,318.56
  6. Step 6: Final answer
    x = 19,303.62

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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.