Home / 28,189.07-38,901.93-15,613.82

Finding the Fourth Proportional to 28,189.07, 38,901.93 and 15,613.82

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Solution

The fourth proportional to 28,189.07, 38,901.93 and 15,613.82 is: 21,547.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,189.07 : 38,901.93 = 15,613.82 : x
  2. Step 2: Convert to fraction form
    28,189.07/38,901.93 = 15,613.82/x
  3. Step 3: Cross multiply
    28,189.07x = 38,901.93 × 15,613.82
  4. Step 4: Simplify right side
    28,189.07x = 607,407,732.67
  5. Step 5: Solve for x
    x = 607,407,732.67/28,189.07
  6. Step 6: Final answer
    x = 21,547.63

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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.