Home / 21,015.76-29,002.98-12,063.28

Finding the Fourth Proportional to 21,015.76, 29,002.98 and 12,063.28

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Solution

The fourth proportional to 21,015.76, 29,002.98 and 12,063.28 is: 16,648.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,015.76 : 29,002.98 = 12,063.28 : x
  2. Step 2: Convert to fraction form
    21,015.76/29,002.98 = 12,063.28/x
  3. Step 3: Cross multiply
    21,015.76x = 29,002.98 × 12,063.28
  4. Step 4: Simplify right side
    21,015.76x = 349,871,068.57
  5. Step 5: Solve for x
    x = 349,871,068.57/21,015.76
  6. Step 6: Final answer
    x = 16,648.03

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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.