Home / 37,116.16-51,220-20,349.12

Finding the Fourth Proportional to 37,116.16, 51,220 and 20,349.12

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Solution

The fourth proportional to 37,116.16, 51,220 and 20,349.12 is: 28,081.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,116.16 : 51,220 = 20,349.12 : x
  2. Step 2: Convert to fraction form
    37,116.16/51,220 = 20,349.12/x
  3. Step 3: Cross multiply
    37,116.16x = 51,220 × 20,349.12
  4. Step 4: Simplify right side
    37,116.16x = 1,042,281,926.40
  5. Step 5: Solve for x
    x = 1,042,281,926.40/37,116.16
  6. Step 6: Final answer
    x = 28,081.62

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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.