Home / 22,973.05-31,700.86-12,900.70

Finding the Fourth Proportional to 22,973.05, 31,700.86 and 12,900.70

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Solution

The fourth proportional to 22,973.05, 31,700.86 and 12,900.70 is: 17,801.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,973.05 : 31,700.86 = 12,900.70 : x
  2. Step 2: Convert to fraction form
    22,973.05/31,700.86 = 12,900.70/x
  3. Step 3: Cross multiply
    22,973.05x = 31,700.86 × 12,900.70
  4. Step 4: Simplify right side
    22,973.05x = 408,963,284.60
  5. Step 5: Solve for x
    x = 408,963,284.60/22,973.05
  6. Step 6: Final answer
    x = 17,801.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.