Home / 31,585.73-43,590.30-18,159.08

Finding the Fourth Proportional to 31,585.73, 43,590.30 and 18,159.08

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Solution

The fourth proportional to 31,585.73, 43,590.30 and 18,159.08 is: 25,060.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,585.73 : 43,590.30 = 18,159.08 : x
  2. Step 2: Convert to fraction form
    31,585.73/43,590.30 = 18,159.08/x
  3. Step 3: Cross multiply
    31,585.73x = 43,590.30 × 18,159.08
  4. Step 4: Simplify right side
    31,585.73x = 791,559,526.97
  5. Step 5: Solve for x
    x = 791,559,526.97/31,585.73
  6. Step 6: Final answer
    x = 25,060.67

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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.