Home / 47,505.56-65,547.06-28,380.20

Finding the Fourth Proportional to 47,505.56, 65,547.06 and 28,380.20

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Solution

The fourth proportional to 47,505.56, 65,547.06 and 28,380.20 is: 39,158.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,505.56 : 65,547.06 = 28,380.20 : x
  2. Step 2: Convert to fraction form
    47,505.56/65,547.06 = 28,380.20/x
  3. Step 3: Cross multiply
    47,505.56x = 65,547.06 × 28,380.20
  4. Step 4: Simplify right side
    47,505.56x = 1,860,238,672.21
  5. Step 5: Solve for x
    x = 1,860,238,672.21/47,505.56
  6. Step 6: Final answer
    x = 39,158.34

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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.