Home / 40,312.48-55,638.42-30,154.48

Finding the Fourth Proportional to 40,312.48, 55,638.42 and 30,154.48

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Solution

The fourth proportional to 40,312.48, 55,638.42 and 30,154.48 is: 41,618.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,312.48 : 55,638.42 = 30,154.48 : x
  2. Step 2: Convert to fraction form
    40,312.48/55,638.42 = 30,154.48/x
  3. Step 3: Cross multiply
    40,312.48x = 55,638.42 × 30,154.48
  4. Step 4: Simplify right side
    40,312.48x = 1,677,747,623.12
  5. Step 5: Solve for x
    x = 1,677,747,623.12/40,312.48
  6. Step 6: Final answer
    x = 41,618.57

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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.