Home / 40,312.52-60,475.04-20,580.40

Finding the Fourth Proportional to 40,312.52, 60,475.04 and 20,580.40

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Solution

The fourth proportional to 40,312.52, 60,475.04 and 20,580.40 is: 30,873.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,312.52 : 60,475.04 = 20,580.40 : x
  2. Step 2: Convert to fraction form
    40,312.52/60,475.04 = 20,580.40/x
  3. Step 3: Cross multiply
    40,312.52x = 60,475.04 × 20,580.40
  4. Step 4: Simplify right side
    40,312.52x = 1,244,600,513.22
  5. Step 5: Solve for x
    x = 1,244,600,513.22/40,312.52
  6. Step 6: Final answer
    x = 30,873.80

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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.