Home / 26,428.23-36,482.40-15,815.88

Finding the Fourth Proportional to 26,428.23, 36,482.40 and 15,815.88

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Solution

The fourth proportional to 26,428.23, 36,482.40 and 15,815.88 is: 21,832.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,428.23 : 36,482.40 = 15,815.88 : x
  2. Step 2: Convert to fraction form
    26,428.23/36,482.40 = 15,815.88/x
  3. Step 3: Cross multiply
    26,428.23x = 36,482.40 × 15,815.88
  4. Step 4: Simplify right side
    26,428.23x = 577,001,260.51
  5. Step 5: Solve for x
    x = 577,001,260.51/26,428.23
  6. Step 6: Final answer
    x = 21,832.76

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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.