Home / 20,335.46-28,061.57-11,260.51

Finding the Fourth Proportional to 20,335.46, 28,061.57 and 11,260.51

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Solution

The fourth proportional to 20,335.46, 28,061.57 and 11,260.51 is: 15,538.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,335.46 : 28,061.57 = 11,260.51 : x
  2. Step 2: Convert to fraction form
    20,335.46/28,061.57 = 11,260.51/x
  3. Step 3: Cross multiply
    20,335.46x = 28,061.57 × 11,260.51
  4. Step 4: Simplify right side
    20,335.46x = 315,987,547.60
  5. Step 5: Solve for x
    x = 315,987,547.60/20,335.46
  6. Step 6: Final answer
    x = 15,538.75

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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.