Home / 34,298.12-47,325.51-20,153.90

Finding the Fourth Proportional to 34,298.12, 47,325.51 and 20,153.90

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Solution

The fourth proportional to 34,298.12, 47,325.51 and 20,153.90 is: 27,808.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,298.12 : 47,325.51 = 20,153.90 : x
  2. Step 2: Convert to fraction form
    34,298.12/47,325.51 = 20,153.90/x
  3. Step 3: Cross multiply
    34,298.12x = 47,325.51 × 20,153.90
  4. Step 4: Simplify right side
    34,298.12x = 953,793,359.36
  5. Step 5: Solve for x
    x = 953,793,359.36/34,298.12
  6. Step 6: Final answer
    x = 27,808.91

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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.