Home / 25,318.71-34,939.31-13,988.33

Finding the Fourth Proportional to 25,318.71, 34,939.31 and 13,988.33

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Solution

The fourth proportional to 25,318.71, 34,939.31 and 13,988.33 is: 19,303.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,318.71 : 34,939.31 = 13,988.33 : x
  2. Step 2: Convert to fraction form
    25,318.71/34,939.31 = 13,988.33/x
  3. Step 3: Cross multiply
    25,318.71x = 34,939.31 × 13,988.33
  4. Step 4: Simplify right side
    25,318.71x = 488,742,353.61
  5. Step 5: Solve for x
    x = 488,742,353.61/25,318.71
  6. Step 6: Final answer
    x = 19,303.60

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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.