Home / 42,774.28-64,143.04-14,697.16

Finding the Fourth Proportional to 42,774.28, 64,143.04 and 14,697.16

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Solution

The fourth proportional to 42,774.28, 64,143.04 and 14,697.16 is: 22,039.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,774.28 : 64,143.04 = 14,697.16 : x
  2. Step 2: Convert to fraction form
    42,774.28/64,143.04 = 14,697.16/x
  3. Step 3: Cross multiply
    42,774.28x = 64,143.04 × 14,697.16
  4. Step 4: Simplify right side
    42,774.28x = 942,720,521.77
  5. Step 5: Solve for x
    x = 942,720,521.77/42,774.28
  6. Step 6: Final answer
    x = 22,039.42

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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.