Home / 40,279.16-60,438.59-18,108.65

Finding the Fourth Proportional to 40,279.16, 60,438.59 and 18,108.65

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Solution

The fourth proportional to 40,279.16, 60,438.59 and 18,108.65 is: 27,171.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,279.16 : 60,438.59 = 18,108.65 : x
  2. Step 2: Convert to fraction form
    40,279.16/60,438.59 = 18,108.65/x
  3. Step 3: Cross multiply
    40,279.16x = 60,438.59 × 18,108.65
  4. Step 4: Simplify right side
    40,279.16x = 1,094,460,880.07
  5. Step 5: Solve for x
    x = 1,094,460,880.07/40,279.16
  6. Step 6: Final answer
    x = 27,171.89

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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.