Home / 22,528.18-31,088.70-12,969.94

Finding the Fourth Proportional to 22,528.18, 31,088.70 and 12,969.94

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Solution

The fourth proportional to 22,528.18, 31,088.70 and 12,969.94 is: 17,898.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,528.18 : 31,088.70 = 12,969.94 : x
  2. Step 2: Convert to fraction form
    22,528.18/31,088.70 = 12,969.94/x
  3. Step 3: Cross multiply
    22,528.18x = 31,088.70 × 12,969.94
  4. Step 4: Simplify right side
    22,528.18x = 403,218,573.68
  5. Step 5: Solve for x
    x = 403,218,573.68/22,528.18
  6. Step 6: Final answer
    x = 17,898.41

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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.