Home / 40,870.22-61,305.53-12,407.42

Finding the Fourth Proportional to 40,870.22, 61,305.53 and 12,407.42

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Solution

The fourth proportional to 40,870.22, 61,305.53 and 12,407.42 is: 18,611.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,870.22 : 61,305.53 = 12,407.42 : x
  2. Step 2: Convert to fraction form
    40,870.22/61,305.53 = 12,407.42/x
  3. Step 3: Cross multiply
    40,870.22x = 61,305.53 × 12,407.42
  4. Step 4: Simplify right side
    40,870.22x = 760,643,459.03
  5. Step 5: Solve for x
    x = 760,643,459.03/40,870.22
  6. Step 6: Final answer
    x = 18,611.19

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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.