Home / 26,639.47-39,945.21-7,916.91

Finding the Fourth Proportional to 26,639.47, 39,945.21 and 7,916.91

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Solution

The fourth proportional to 26,639.47, 39,945.21 and 7,916.91 is: 11,871.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,639.47 : 39,945.21 = 7,916.91 : x
  2. Step 2: Convert to fraction form
    26,639.47/39,945.21 = 7,916.91/x
  3. Step 3: Cross multiply
    26,639.47x = 39,945.21 × 7,916.91
  4. Step 4: Simplify right side
    26,639.47x = 316,242,632.50
  5. Step 5: Solve for x
    x = 316,242,632.50/26,639.47
  6. Step 6: Final answer
    x = 11,871.21

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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.