Home / 42,270.46-63,416.22-12,688.84

Finding the Fourth Proportional to 42,270.46, 63,416.22 and 12,688.84

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Solution

The fourth proportional to 42,270.46, 63,416.22 and 12,688.84 is: 19,036.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,270.46 : 63,416.22 = 12,688.84 : x
  2. Step 2: Convert to fraction form
    42,270.46/63,416.22 = 12,688.84/x
  3. Step 3: Cross multiply
    42,270.46x = 63,416.22 × 12,688.84
  4. Step 4: Simplify right side
    42,270.46x = 804,678,268.98
  5. Step 5: Solve for x
    x = 804,678,268.98/42,270.46
  6. Step 6: Final answer
    x = 19,036.42

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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.