Home / 42,715.28-64,103.16-15,015.44

Finding the Fourth Proportional to 42,715.28, 64,103.16 and 15,015.44

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Solution

The fourth proportional to 42,715.28, 64,103.16 and 15,015.44 is: 22,533.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,715.28 : 64,103.16 = 15,015.44 : x
  2. Step 2: Convert to fraction form
    42,715.28/64,103.16 = 15,015.44/x
  3. Step 3: Cross multiply
    42,715.28x = 64,103.16 × 15,015.44
  4. Step 4: Simplify right side
    42,715.28x = 962,537,152.79
  5. Step 5: Solve for x
    x = 962,537,152.79/42,715.28
  6. Step 6: Final answer
    x = 22,533.79

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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.