Home / 22,970.46-31,698.21-12,898.74

Finding the Fourth Proportional to 22,970.46, 31,698.21 and 12,898.74

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Solution

The fourth proportional to 22,970.46, 31,698.21 and 12,898.74 is: 17,799.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,970.46 : 31,698.21 = 12,898.74 : x
  2. Step 2: Convert to fraction form
    22,970.46/31,698.21 = 12,898.74/x
  3. Step 3: Cross multiply
    22,970.46x = 31,698.21 × 12,898.74
  4. Step 4: Simplify right side
    22,970.46x = 408,866,969.26
  5. Step 5: Solve for x
    x = 408,866,969.26/22,970.46
  6. Step 6: Final answer
    x = 17,799.69

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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.