Home / 42,426.54-63,639.20-14,340.60

Finding the Fourth Proportional to 42,426.54, 63,639.20 and 14,340.60

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Solution

The fourth proportional to 42,426.54, 63,639.20 and 14,340.60 is: 21,510.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,426.54 : 63,639.20 = 14,340.60 : x
  2. Step 2: Convert to fraction form
    42,426.54/63,639.20 = 14,340.60/x
  3. Step 3: Cross multiply
    42,426.54x = 63,639.20 × 14,340.60
  4. Step 4: Simplify right side
    42,426.54x = 912,624,311.52
  5. Step 5: Solve for x
    x = 912,624,311.52/42,426.54
  6. Step 6: Final answer
    x = 21,510.69

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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.