Home / 39,479.09-59,222.43-15,780.98

Finding the Fourth Proportional to 39,479.09, 59,222.43 and 15,780.98

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Solution

The fourth proportional to 39,479.09, 59,222.43 and 15,780.98 is: 23,672.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,479.09 : 59,222.43 = 15,780.98 : x
  2. Step 2: Convert to fraction form
    39,479.09/59,222.43 = 15,780.98/x
  3. Step 3: Cross multiply
    39,479.09x = 59,222.43 × 15,780.98
  4. Step 4: Simplify right side
    39,479.09x = 934,587,687.27
  5. Step 5: Solve for x
    x = 934,587,687.27/39,479.09
  6. Step 6: Final answer
    x = 23,672.98

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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.