Home / 28,648.32-42,971.76-8,926.80

Finding the Fourth Proportional to 28,648.32, 42,971.76 and 8,926.80

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Solution

The fourth proportional to 28,648.32, 42,971.76 and 8,926.80 is: 13,389.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,648.32 : 42,971.76 = 8,926.80 : x
  2. Step 2: Convert to fraction form
    28,648.32/42,971.76 = 8,926.80/x
  3. Step 3: Cross multiply
    28,648.32x = 42,971.76 × 8,926.80
  4. Step 4: Simplify right side
    28,648.32x = 383,600,307.17
  5. Step 5: Solve for x
    x = 383,600,307.17/28,648.32
  6. Step 6: Final answer
    x = 13,389.98

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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.