Home / 15,327.23-21,240.33-15,031.98

Finding the Fourth Proportional to 15,327.23, 21,240.33 and 15,031.98

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Solution

The fourth proportional to 15,327.23, 21,240.33 and 15,031.98 is: 20,831.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,327.23 : 21,240.33 = 15,031.98 : x
  2. Step 2: Convert to fraction form
    15,327.23/21,240.33 = 15,031.98/x
  3. Step 3: Cross multiply
    15,327.23x = 21,240.33 × 15,031.98
  4. Step 4: Simplify right side
    15,327.23x = 319,284,159.38
  5. Step 5: Solve for x
    x = 319,284,159.38/15,327.23
  6. Step 6: Final answer
    x = 20,831.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.