Home / 31,510.89-47,267.24-11,785.68

Finding the Fourth Proportional to 31,510.89, 47,267.24 and 11,785.68

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Solution

The fourth proportional to 31,510.89, 47,267.24 and 11,785.68 is: 17,678.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,510.89 : 47,267.24 = 11,785.68 : x
  2. Step 2: Convert to fraction form
    31,510.89/47,267.24 = 11,785.68/x
  3. Step 3: Cross multiply
    31,510.89x = 47,267.24 × 11,785.68
  4. Step 4: Simplify right side
    31,510.89x = 557,076,506.19
  5. Step 5: Solve for x
    x = 557,076,506.19/31,510.89
  6. Step 6: Final answer
    x = 17,678.86

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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.