Home / 42,320.87-63,485.21-15,309.97

Finding the Fourth Proportional to 42,320.87, 63,485.21 and 15,309.97

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Solution

The fourth proportional to 42,320.87, 63,485.21 and 15,309.97 is: 22,966.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,320.87 : 63,485.21 = 15,309.97 : x
  2. Step 2: Convert to fraction form
    42,320.87/63,485.21 = 15,309.97/x
  3. Step 3: Cross multiply
    42,320.87x = 63,485.21 × 15,309.97
  4. Step 4: Simplify right side
    42,320.87x = 971,956,573.98
  5. Step 5: Solve for x
    x = 971,956,573.98/42,320.87
  6. Step 6: Final answer
    x = 22,966.37

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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.