Home / 28,189.67-38,901.26-15,614.15

Finding the Fourth Proportional to 28,189.67, 38,901.26 and 15,614.15

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Solution

The fourth proportional to 28,189.67, 38,901.26 and 15,614.15 is: 21,547.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,189.67 : 38,901.26 = 15,614.15 : x
  2. Step 2: Convert to fraction form
    28,189.67/38,901.26 = 15,614.15/x
  3. Step 3: Cross multiply
    28,189.67x = 38,901.26 × 15,614.15
  4. Step 4: Simplify right side
    28,189.67x = 607,409,953.36
  5. Step 5: Solve for x
    x = 607,409,953.36/28,189.67
  6. Step 6: Final answer
    x = 21,547.26

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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.