Home / 30,254.70-45,386.10-10,539.30

Finding the Fourth Proportional to 30,254.70, 45,386.10 and 10,539.30

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Solution

The fourth proportional to 30,254.70, 45,386.10 and 10,539.30 is: 15,810.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,254.70 : 45,386.10 = 10,539.30 : x
  2. Step 2: Convert to fraction form
    30,254.70/45,386.10 = 10,539.30/x
  3. Step 3: Cross multiply
    30,254.70x = 45,386.10 × 10,539.30
  4. Step 4: Simplify right side
    30,254.70x = 478,337,723.73
  5. Step 5: Solve for x
    x = 478,337,723.73/30,254.70
  6. Step 6: Final answer
    x = 15,810.36

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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.