Home / 28,433.07-42,649.61-7,656.57

Finding the Fourth Proportional to 28,433.07, 42,649.61 and 7,656.57

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Solution

The fourth proportional to 28,433.07, 42,649.61 and 7,656.57 is: 11,484.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,433.07 : 42,649.61 = 7,656.57 : x
  2. Step 2: Convert to fraction form
    28,433.07/42,649.61 = 7,656.57/x
  3. Step 3: Cross multiply
    28,433.07x = 42,649.61 × 7,656.57
  4. Step 4: Simplify right side
    28,433.07x = 326,549,686.15
  5. Step 5: Solve for x
    x = 326,549,686.15/28,433.07
  6. Step 6: Final answer
    x = 11,484.86

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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.