Home / 31,655.04-43,676.88-18,904.80

Finding the Fourth Proportional to 31,655.04, 43,676.88 and 18,904.80

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Solution

The fourth proportional to 31,655.04, 43,676.88 and 18,904.80 is: 26,084.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,655.04 : 43,676.88 = 18,904.80 : x
  2. Step 2: Convert to fraction form
    31,655.04/43,676.88 = 18,904.80/x
  3. Step 3: Cross multiply
    31,655.04x = 43,676.88 × 18,904.80
  4. Step 4: Simplify right side
    31,655.04x = 825,702,681.02
  5. Step 5: Solve for x
    x = 825,702,681.02/31,655.04
  6. Step 6: Final answer
    x = 26,084.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.