Home / 15,617.81-23,429.16-5,085.35

Finding the Fourth Proportional to 15,617.81, 23,429.16 and 5,085.35

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Solution

The fourth proportional to 15,617.81, 23,429.16 and 5,085.35 is: 7,628.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,617.81 : 23,429.16 = 5,085.35 : x
  2. Step 2: Convert to fraction form
    15,617.81/23,429.16 = 5,085.35/x
  3. Step 3: Cross multiply
    15,617.81x = 23,429.16 × 5,085.35
  4. Step 4: Simplify right side
    15,617.81x = 119,145,435.22
  5. Step 5: Solve for x
    x = 119,145,435.22/15,617.81
  6. Step 6: Final answer
    x = 7,628.82

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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.