Home / 28,013.75-42,020.47-16,159.84

Finding the Fourth Proportional to 28,013.75, 42,020.47 and 16,159.84

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Solution

The fourth proportional to 28,013.75, 42,020.47 and 16,159.84 is: 24,239.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,013.75 : 42,020.47 = 16,159.84 : x
  2. Step 2: Convert to fraction form
    28,013.75/42,020.47 = 16,159.84/x
  3. Step 3: Cross multiply
    28,013.75x = 42,020.47 × 16,159.84
  4. Step 4: Simplify right side
    28,013.75x = 679,044,071.92
  5. Step 5: Solve for x
    x = 679,044,071.92/28,013.75
  6. Step 6: Final answer
    x = 24,239.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.