Home / 34,309.40-51,459.30-10,938.20

Finding the Fourth Proportional to 34,309.40, 51,459.30 and 10,938.20

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Solution

The fourth proportional to 34,309.40, 51,459.30 and 10,938.20 is: 16,405.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,309.40 : 51,459.30 = 10,938.20 : x
  2. Step 2: Convert to fraction form
    34,309.40/51,459.30 = 10,938.20/x
  3. Step 3: Cross multiply
    34,309.40x = 51,459.30 × 10,938.20
  4. Step 4: Simplify right side
    34,309.40x = 562,872,115.26
  5. Step 5: Solve for x
    x = 562,872,115.26/34,309.40
  6. Step 6: Final answer
    x = 16,405.77

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1.5x scale

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.