Home / 31,178.04-43,011.99-18,595.50

Finding the Fourth Proportional to 31,178.04, 43,011.99 and 18,595.50

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Solution

The fourth proportional to 31,178.04, 43,011.99 and 18,595.50 is: 25,653.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,178.04 : 43,011.99 = 18,595.50 : x
  2. Step 2: Convert to fraction form
    31,178.04/43,011.99 = 18,595.50/x
  3. Step 3: Cross multiply
    31,178.04x = 43,011.99 × 18,595.50
  4. Step 4: Simplify right side
    31,178.04x = 799,829,460.05
  5. Step 5: Solve for x
    x = 799,829,460.05/31,178.04
  6. Step 6: Final answer
    x = 25,653.62

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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.