Home / 25,139.06-34,672.47-18,422.18

Finding the Fourth Proportional to 25,139.06, 34,672.47 and 18,422.18

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Solution

The fourth proportional to 25,139.06, 34,672.47 and 18,422.18 is: 25,408.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,139.06 : 34,672.47 = 18,422.18 : x
  2. Step 2: Convert to fraction form
    25,139.06/34,672.47 = 18,422.18/x
  3. Step 3: Cross multiply
    25,139.06x = 34,672.47 × 18,422.18
  4. Step 4: Simplify right side
    25,139.06x = 638,742,483.38
  5. Step 5: Solve for x
    x = 638,742,483.38/25,139.06
  6. Step 6: Final answer
    x = 25,408.37

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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.