Home / 26,407.40-39,611.10-17,613.80

Finding the Fourth Proportional to 26,407.40, 39,611.10 and 17,613.80

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Solution

The fourth proportional to 26,407.40, 39,611.10 and 17,613.80 is: 26,420.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,407.40 : 39,611.10 = 17,613.80 : x
  2. Step 2: Convert to fraction form
    26,407.40/39,611.10 = 17,613.80/x
  3. Step 3: Cross multiply
    26,407.40x = 39,611.10 × 17,613.80
  4. Step 4: Simplify right side
    26,407.40x = 697,701,993.18
  5. Step 5: Solve for x
    x = 697,701,993.18/26,407.40
  6. Step 6: Final answer
    x = 26,420.70

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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.