Home / 35,830.41-49,442.03-20,720.78

Finding the Fourth Proportional to 35,830.41, 49,442.03 and 20,720.78

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Solution

The fourth proportional to 35,830.41, 49,442.03 and 20,720.78 is: 28,592.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,830.41 : 49,442.03 = 20,720.78 : x
  2. Step 2: Convert to fraction form
    35,830.41/49,442.03 = 20,720.78/x
  3. Step 3: Cross multiply
    35,830.41x = 49,442.03 × 20,720.78
  4. Step 4: Simplify right side
    35,830.41x = 1,024,477,426.38
  5. Step 5: Solve for x
    x = 1,024,477,426.38/35,830.41
  6. Step 6: Final answer
    x = 28,592.40

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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.