Home / 34,152.15-47,135.64-19,820.46

Finding the Fourth Proportional to 34,152.15, 47,135.64 and 19,820.46

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Solution

The fourth proportional to 34,152.15, 47,135.64 and 19,820.46 is: 27,355.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,152.15 : 47,135.64 = 19,820.46 : x
  2. Step 2: Convert to fraction form
    34,152.15/47,135.64 = 19,820.46/x
  3. Step 3: Cross multiply
    34,152.15x = 47,135.64 × 19,820.46
  4. Step 4: Simplify right side
    34,152.15x = 934,249,968.09
  5. Step 5: Solve for x
    x = 934,249,968.09/34,152.15
  6. Step 6: Final answer
    x = 27,355.53

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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.