Home / 42,405.46-63,615.51-14,325.72

Finding the Fourth Proportional to 42,405.46, 63,615.51 and 14,325.72

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Solution

The fourth proportional to 42,405.46, 63,615.51 and 14,325.72 is: 21,491.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,405.46 : 63,615.51 = 14,325.72 : x
  2. Step 2: Convert to fraction form
    42,405.46/63,615.51 = 14,325.72/x
  3. Step 3: Cross multiply
    42,405.46x = 63,615.51 × 14,325.72
  4. Step 4: Simplify right side
    42,405.46x = 911,337,983.92
  5. Step 5: Solve for x
    x = 911,337,983.92/42,405.46
  6. Step 6: Final answer
    x = 21,491.05

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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.