Home / 26,787.78-36,966.81-15,457.14

Finding the Fourth Proportional to 26,787.78, 36,966.81 and 15,457.14

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Solution

The fourth proportional to 26,787.78, 36,966.81 and 15,457.14 is: 21,330.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,787.78 : 36,966.81 = 15,457.14 : x
  2. Step 2: Convert to fraction form
    26,787.78/36,966.81 = 15,457.14/x
  3. Step 3: Cross multiply
    26,787.78x = 36,966.81 × 15,457.14
  4. Step 4: Simplify right side
    26,787.78x = 571,401,157.52
  5. Step 5: Solve for x
    x = 571,401,157.52/26,787.78
  6. Step 6: Final answer
    x = 21,330.66

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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.