Home / 31,985.68-47,734.22-28,486.48

Finding the Fourth Proportional to 31,985.68, 47,734.22 and 28,486.48

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Solution

The fourth proportional to 31,985.68, 47,734.22 and 28,486.48 is: 42,512.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,985.68 : 47,734.22 = 28,486.48 : x
  2. Step 2: Convert to fraction form
    31,985.68/47,734.22 = 28,486.48/x
  3. Step 3: Cross multiply
    31,985.68x = 47,734.22 × 28,486.48
  4. Step 4: Simplify right side
    31,985.68x = 1,359,779,903.35
  5. Step 5: Solve for x
    x = 1,359,779,903.35/31,985.68
  6. Step 6: Final answer
    x = 42,512.15

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.