Home / 47,585.18-65,670.28-28,725.14

Finding the Fourth Proportional to 47,585.18, 65,670.28 and 28,725.14

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Solution

The fourth proportional to 47,585.18, 65,670.28 and 28,725.14 is: 39,642.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,585.18 : 65,670.28 = 28,725.14 : x
  2. Step 2: Convert to fraction form
    47,585.18/65,670.28 = 28,725.14/x
  3. Step 3: Cross multiply
    47,585.18x = 65,670.28 × 28,725.14
  4. Step 4: Simplify right side
    47,585.18x = 1,886,387,986.84
  5. Step 5: Solve for x
    x = 1,886,387,986.84/47,585.18
  6. Step 6: Final answer
    x = 39,642.34

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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.