Home / 31,136.80-46,653.90-17,966.20

Finding the Fourth Proportional to 31,136.80, 46,653.90 and 17,966.20

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Solution

The fourth proportional to 31,136.80, 46,653.90 and 17,966.20 is: 26,919.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,136.80 : 46,653.90 = 17,966.20 : x
  2. Step 2: Convert to fraction form
    31,136.80/46,653.90 = 17,966.20/x
  3. Step 3: Cross multiply
    31,136.80x = 46,653.90 × 17,966.20
  4. Step 4: Simplify right side
    31,136.80x = 838,193,298.18
  5. Step 5: Solve for x
    x = 838,193,298.18/31,136.80
  6. Step 6: Final answer
    x = 26,919.70

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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.