Home / 47,020.68-70,513.22-18,931.16

Finding the Fourth Proportional to 47,020.68, 70,513.22 and 18,931.16

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Solution

The fourth proportional to 47,020.68, 70,513.22 and 18,931.16 is: 28,389.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,020.68 : 70,513.22 = 18,931.16 : x
  2. Step 2: Convert to fraction form
    47,020.68/70,513.22 = 18,931.16/x
  3. Step 3: Cross multiply
    47,020.68x = 70,513.22 × 18,931.16
  4. Step 4: Simplify right side
    47,020.68x = 1,334,897,049.94
  5. Step 5: Solve for x
    x = 1,334,897,049.94/47,020.68
  6. Step 6: Final answer
    x = 28,389.57

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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.