Home / 55,031.63-82,547.64-13,478.63

Finding the Fourth Proportional to 55,031.63, 82,547.64 and 13,478.63

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Solution

The fourth proportional to 55,031.63, 82,547.64 and 13,478.63 is: 20,217.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,031.63 : 82,547.64 = 13,478.63 : x
  2. Step 2: Convert to fraction form
    55,031.63/82,547.64 = 13,478.63/x
  3. Step 3: Cross multiply
    55,031.63x = 82,547.64 × 13,478.63
  4. Step 4: Simplify right side
    55,031.63x = 1,112,628,684.20
  5. Step 5: Solve for x
    x = 1,112,628,684.20/55,031.63
  6. Step 6: Final answer
    x = 20,217.99

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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.