Home / 28,101.18-38,780.76-16,164.51

Finding the Fourth Proportional to 28,101.18, 38,780.76 and 16,164.51

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Solution

The fourth proportional to 28,101.18, 38,780.76 and 16,164.51 is: 22,307.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,101.18 : 38,780.76 = 16,164.51 : x
  2. Step 2: Convert to fraction form
    28,101.18/38,780.76 = 16,164.51/x
  3. Step 3: Cross multiply
    28,101.18x = 38,780.76 × 16,164.51
  4. Step 4: Simplify right side
    28,101.18x = 626,871,982.83
  5. Step 5: Solve for x
    x = 626,871,982.83/28,101.18
  6. Step 6: Final answer
    x = 22,307.67

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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.