Home / 31,435.74-47,153.61-19,757.16

Finding the Fourth Proportional to 31,435.74, 47,153.61 and 19,757.16

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Solution

The fourth proportional to 31,435.74, 47,153.61 and 19,757.16 is: 29,635.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,435.74 : 47,153.61 = 19,757.16 : x
  2. Step 2: Convert to fraction form
    31,435.74/47,153.61 = 19,757.16/x
  3. Step 3: Cross multiply
    31,435.74x = 47,153.61 × 19,757.16
  4. Step 4: Simplify right side
    31,435.74x = 931,621,417.35
  5. Step 5: Solve for x
    x = 931,621,417.35/31,435.74
  6. Step 6: Final answer
    x = 29,635.74

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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.