Home / 40,723.80-61,085.70-14,431.20

Finding the Fourth Proportional to 40,723.80, 61,085.70 and 14,431.20

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Solution

The fourth proportional to 40,723.80, 61,085.70 and 14,431.20 is: 21,646.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,723.80 : 61,085.70 = 14,431.20 : x
  2. Step 2: Convert to fraction form
    40,723.80/61,085.70 = 14,431.20/x
  3. Step 3: Cross multiply
    40,723.80x = 61,085.70 × 14,431.20
  4. Step 4: Simplify right side
    40,723.80x = 881,539,953.84
  5. Step 5: Solve for x
    x = 881,539,953.84/40,723.80
  6. Step 6: Final answer
    x = 21,646.80

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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.