Home / 31,506.10-47,259.72-9,319.46

Finding the Fourth Proportional to 31,506.10, 47,259.72 and 9,319.46

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Solution

The fourth proportional to 31,506.10, 47,259.72 and 9,319.46 is: 13,979.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,506.10 : 47,259.72 = 9,319.46 : x
  2. Step 2: Convert to fraction form
    31,506.10/47,259.72 = 9,319.46/x
  3. Step 3: Cross multiply
    31,506.10x = 47,259.72 × 9,319.46
  4. Step 4: Simplify right side
    31,506.10x = 440,434,833.85
  5. Step 5: Solve for x
    x = 440,434,833.85/31,506.10
  6. Step 6: Final answer
    x = 13,979.35

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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.