Home / 26,078.90-35,988.81-14,142.20

Finding the Fourth Proportional to 26,078.90, 35,988.81 and 14,142.20

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Solution

The fourth proportional to 26,078.90, 35,988.81 and 14,142.20 is: 19,516.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,078.90 : 35,988.81 = 14,142.20 : x
  2. Step 2: Convert to fraction form
    26,078.90/35,988.81 = 14,142.20/x
  3. Step 3: Cross multiply
    26,078.90x = 35,988.81 × 14,142.20
  4. Step 4: Simplify right side
    26,078.90x = 508,960,948.78
  5. Step 5: Solve for x
    x = 508,960,948.78/26,078.90
  6. Step 6: Final answer
    x = 19,516.20

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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.