Home / 28,564.32-42,864.22-13,774.76

Finding the Fourth Proportional to 28,564.32, 42,864.22 and 13,774.76

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Solution

The fourth proportional to 28,564.32, 42,864.22 and 13,774.76 is: 20,670.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,564.32 : 42,864.22 = 13,774.76 : x
  2. Step 2: Convert to fraction form
    28,564.32/42,864.22 = 13,774.76/x
  3. Step 3: Cross multiply
    28,564.32x = 42,864.22 × 13,774.76
  4. Step 4: Simplify right side
    28,564.32x = 590,444,343.09
  5. Step 5: Solve for x
    x = 590,444,343.09/28,564.32
  6. Step 6: Final answer
    x = 20,670.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.