Home / 28,180.19-38,888.38-15,259.40

Finding the Fourth Proportional to 28,180.19, 38,888.38 and 15,259.40

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Solution

The fourth proportional to 28,180.19, 38,888.38 and 15,259.40 is: 21,057.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,180.19 : 38,888.38 = 15,259.40 : x
  2. Step 2: Convert to fraction form
    28,180.19/38,888.38 = 15,259.40/x
  3. Step 3: Cross multiply
    28,180.19x = 38,888.38 × 15,259.40
  4. Step 4: Simplify right side
    28,180.19x = 593,413,345.77
  5. Step 5: Solve for x
    x = 593,413,345.77/28,180.19
  6. Step 6: Final answer
    x = 21,057.82

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Double scale
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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.