Home / 16,988.78-25,505.40-14,911.10

Finding the Fourth Proportional to 16,988.78, 25,505.40 and 14,911.10

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Solution

The fourth proportional to 16,988.78, 25,505.40 and 14,911.10 is: 22,386.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,988.78 : 25,505.40 = 14,911.10 : x
  2. Step 2: Convert to fraction form
    16,988.78/25,505.40 = 14,911.10/x
  3. Step 3: Cross multiply
    16,988.78x = 25,505.40 × 14,911.10
  4. Step 4: Simplify right side
    16,988.78x = 380,313,569.94
  5. Step 5: Solve for x
    x = 380,313,569.94/16,988.78
  6. Step 6: Final answer
    x = 22,386.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.