Home / 27,590.80-38,072.66-15,488.51

Finding the Fourth Proportional to 27,590.80, 38,072.66 and 15,488.51

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Solution

The fourth proportional to 27,590.80, 38,072.66 and 15,488.51 is: 21,372.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,590.80 : 38,072.66 = 15,488.51 : x
  2. Step 2: Convert to fraction form
    27,590.80/38,072.66 = 15,488.51/x
  3. Step 3: Cross multiply
    27,590.80x = 38,072.66 × 15,488.51
  4. Step 4: Simplify right side
    27,590.80x = 589,688,775.14
  5. Step 5: Solve for x
    x = 589,688,775.14/27,590.80
  6. Step 6: Final answer
    x = 21,372.66

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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.