Home / 26,138.16-36,070.56-15,389.28

Finding the Fourth Proportional to 26,138.16, 36,070.56 and 15,389.28

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Solution

The fourth proportional to 26,138.16, 36,070.56 and 15,389.28 is: 21,237.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,138.16 : 36,070.56 = 15,389.28 : x
  2. Step 2: Convert to fraction form
    26,138.16/36,070.56 = 15,389.28/x
  3. Step 3: Cross multiply
    26,138.16x = 36,070.56 × 15,389.28
  4. Step 4: Simplify right side
    26,138.16x = 555,099,947.60
  5. Step 5: Solve for x
    x = 555,099,947.60/26,138.16
  6. Step 6: Final answer
    x = 21,237.15

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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.