Home / 47,547.27-65,615.67-28,680.75

Finding the Fourth Proportional to 47,547.27, 65,615.67 and 28,680.75

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Solution

The fourth proportional to 47,547.27, 65,615.67 and 28,680.75 is: 39,579.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,547.27 : 65,615.67 = 28,680.75 : x
  2. Step 2: Convert to fraction form
    47,547.27/65,615.67 = 28,680.75/x
  3. Step 3: Cross multiply
    47,547.27x = 65,615.67 × 28,680.75
  4. Step 4: Simplify right side
    47,547.27x = 1,881,906,627.35
  5. Step 5: Solve for x
    x = 1,881,906,627.35/47,547.27
  6. Step 6: Final answer
    x = 39,579.70

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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.