Home / 26,790.78-36,970.95-15,460.14

Finding the Fourth Proportional to 26,790.78, 36,970.95 and 15,460.14

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Solution

The fourth proportional to 26,790.78, 36,970.95 and 15,460.14 is: 21,334.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,790.78 : 36,970.95 = 15,460.14 : x
  2. Step 2: Convert to fraction form
    26,790.78/36,970.95 = 15,460.14/x
  3. Step 3: Cross multiply
    26,790.78x = 36,970.95 × 15,460.14
  4. Step 4: Simplify right side
    26,790.78x = 571,576,062.93
  5. Step 5: Solve for x
    x = 571,576,062.93/26,790.78
  6. Step 6: Final answer
    x = 21,334.80

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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.