Home / 31,509.13-47,271.05-10,447.63

Finding the Fourth Proportional to 31,509.13, 47,271.05 and 10,447.63

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Solution

The fourth proportional to 31,509.13, 47,271.05 and 10,447.63 is: 15,673.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,509.13 : 47,271.05 = 10,447.63 : x
  2. Step 2: Convert to fraction form
    31,509.13/47,271.05 = 10,447.63/x
  3. Step 3: Cross multiply
    31,509.13x = 47,271.05 × 10,447.63
  4. Step 4: Simplify right side
    31,509.13x = 493,870,269.70
  5. Step 5: Solve for x
    x = 493,870,269.70/31,509.13
  6. Step 6: Final answer
    x = 15,673.88

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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.