Home / 31,985.40-48,035.70-30,948.60

Finding the Fourth Proportional to 31,985.40, 48,035.70 and 30,948.60

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Solution

The fourth proportional to 31,985.40, 48,035.70 and 30,948.60 is: 46,478.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,985.40 : 48,035.70 = 30,948.60 : x
  2. Step 2: Convert to fraction form
    31,985.40/48,035.70 = 30,948.60/x
  3. Step 3: Cross multiply
    31,985.40x = 48,035.70 × 30,948.60
  4. Step 4: Simplify right side
    31,985.40x = 1,486,637,665.02
  5. Step 5: Solve for x
    x = 1,486,637,665.02/31,985.40
  6. Step 6: Final answer
    x = 46,478.63

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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.