Home / 26,685.72-36,828.54-15,507

Finding the Fourth Proportional to 26,685.72, 36,828.54 and 15,507

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Solution

The fourth proportional to 26,685.72, 36,828.54 and 15,507 is: 21,400.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,685.72 : 36,828.54 = 15,507 : x
  2. Step 2: Convert to fraction form
    26,685.72/36,828.54 = 15,507/x
  3. Step 3: Cross multiply
    26,685.72x = 36,828.54 × 15,507
  4. Step 4: Simplify right side
    26,685.72x = 571,100,169.78
  5. Step 5: Solve for x
    x = 571,100,169.78/26,685.72
  6. Step 6: Final answer
    x = 21,400.97

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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.