Home / 43,678.51-65,543.16-18,376.17

Finding the Fourth Proportional to 43,678.51, 65,543.16 and 18,376.17

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Solution

The fourth proportional to 43,678.51, 65,543.16 and 18,376.17 is: 27,574.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,678.51 : 65,543.16 = 18,376.17 : x
  2. Step 2: Convert to fraction form
    43,678.51/65,543.16 = 18,376.17/x
  3. Step 3: Cross multiply
    43,678.51x = 65,543.16 × 18,376.17
  4. Step 4: Simplify right side
    43,678.51x = 1,204,432,319.41
  5. Step 5: Solve for x
    x = 1,204,432,319.41/43,678.51
  6. Step 6: Final answer
    x = 27,574.94

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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.