Home / 18,547.17-27,838.97-13,602.72

Finding the Fourth Proportional to 18,547.17, 27,838.97 and 13,602.72

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Solution

The fourth proportional to 18,547.17, 27,838.97 and 13,602.72 is: 20,417.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,547.17 : 27,838.97 = 13,602.72 : x
  2. Step 2: Convert to fraction form
    18,547.17/27,838.97 = 13,602.72/x
  3. Step 3: Cross multiply
    18,547.17x = 27,838.97 × 13,602.72
  4. Step 4: Simplify right side
    18,547.17x = 378,685,714.00
  5. Step 5: Solve for x
    x = 378,685,714.00/18,547.17
  6. Step 6: Final answer
    x = 20,417.44

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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.