Home / 27,521.72-37,980.11-15,587.37

Finding the Fourth Proportional to 27,521.72, 37,980.11 and 15,587.37

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Solution

The fourth proportional to 27,521.72, 37,980.11 and 15,587.37 is: 21,510.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,521.72 : 37,980.11 = 15,587.37 : x
  2. Step 2: Convert to fraction form
    27,521.72/37,980.11 = 15,587.37/x
  3. Step 3: Cross multiply
    27,521.72x = 37,980.11 × 15,587.37
  4. Step 4: Simplify right side
    27,521.72x = 592,009,949.27
  5. Step 5: Solve for x
    x = 592,009,949.27/27,521.72
  6. Step 6: Final answer
    x = 21,510.65

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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.