Home / 15,419.90-23,139.07-14,165.11

Finding the Fourth Proportional to 15,419.90, 23,139.07 and 14,165.11

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Solution

The fourth proportional to 15,419.90, 23,139.07 and 14,165.11 is: 21,256.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,419.90 : 23,139.07 = 14,165.11 : x
  2. Step 2: Convert to fraction form
    15,419.90/23,139.07 = 14,165.11/x
  3. Step 3: Cross multiply
    15,419.90x = 23,139.07 × 14,165.11
  4. Step 4: Simplify right side
    15,419.90x = 327,767,394.96
  5. Step 5: Solve for x
    x = 327,767,394.96/15,419.90
  6. Step 6: Final answer
    x = 21,256.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.