Home / 19,415.17-29,115.57-6,931.84

Finding the Fourth Proportional to 19,415.17, 29,115.57 and 6,931.84

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Solution

The fourth proportional to 19,415.17, 29,115.57 and 6,931.84 is: 10,395.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,415.17 : 29,115.57 = 6,931.84 : x
  2. Step 2: Convert to fraction form
    19,415.17/29,115.57 = 6,931.84/x
  3. Step 3: Cross multiply
    19,415.17x = 29,115.57 × 6,931.84
  4. Step 4: Simplify right side
    19,415.17x = 201,824,472.75
  5. Step 5: Solve for x
    x = 201,824,472.75/19,415.17
  6. Step 6: Final answer
    x = 10,395.19

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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.