Home / 19,988.08-27,582.82-10,913.27

Finding the Fourth Proportional to 19,988.08, 27,582.82 and 10,913.27

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Solution

The fourth proportional to 19,988.08, 27,582.82 and 10,913.27 is: 15,059.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,988.08 : 27,582.82 = 10,913.27 : x
  2. Step 2: Convert to fraction form
    19,988.08/27,582.82 = 10,913.27/x
  3. Step 3: Cross multiply
    19,988.08x = 27,582.82 × 10,913.27
  4. Step 4: Simplify right side
    19,988.08x = 301,018,700.26
  5. Step 5: Solve for x
    x = 301,018,700.26/19,988.08
  6. Step 6: Final answer
    x = 15,059.91

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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.