Home / 22,887.63-31,585.51-12,818.19

Finding the Fourth Proportional to 22,887.63, 31,585.51 and 12,818.19

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Solution

The fourth proportional to 22,887.63, 31,585.51 and 12,818.19 is: 17,689.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,887.63 : 31,585.51 = 12,818.19 : x
  2. Step 2: Convert to fraction form
    22,887.63/31,585.51 = 12,818.19/x
  3. Step 3: Cross multiply
    22,887.63x = 31,585.51 × 12,818.19
  4. Step 4: Simplify right side
    22,887.63x = 404,869,068.43
  5. Step 5: Solve for x
    x = 404,869,068.43/22,887.63
  6. Step 6: Final answer
    x = 17,689.43

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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.