Home / 42,426-63,639.21-14,346.24

Finding the Fourth Proportional to 42,426, 63,639.21 and 14,346.24

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Solution

The fourth proportional to 42,426, 63,639.21 and 14,346.24 is: 21,519.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,426 : 63,639.21 = 14,346.24 : x
  2. Step 2: Convert to fraction form
    42,426/63,639.21 = 14,346.24/x
  3. Step 3: Cross multiply
    42,426x = 63,639.21 × 14,346.24
  4. Step 4: Simplify right side
    42,426x = 912,983,380.07
  5. Step 5: Solve for x
    x = 912,983,380.07/42,426
  6. Step 6: Final answer
    x = 21,519.43

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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.