Home / 28,166.01-38,865.06-15,590.76

Finding the Fourth Proportional to 28,166.01, 38,865.06 and 15,590.76

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Solution

The fourth proportional to 28,166.01, 38,865.06 and 15,590.76 is: 21,513.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,166.01 : 38,865.06 = 15,590.76 : x
  2. Step 2: Convert to fraction form
    28,166.01/38,865.06 = 15,590.76/x
  3. Step 3: Cross multiply
    28,166.01x = 38,865.06 × 15,590.76
  4. Step 4: Simplify right side
    28,166.01x = 605,935,822.85
  5. Step 5: Solve for x
    x = 605,935,822.85/28,166.01
  6. Step 6: Final answer
    x = 21,513.02

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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.