Home / 30,347.12-45,521.10-11,628.10

Finding the Fourth Proportional to 30,347.12, 45,521.10 and 11,628.10

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Solution

The fourth proportional to 30,347.12, 45,521.10 and 11,628.10 is: 17,442.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,347.12 : 45,521.10 = 11,628.10 : x
  2. Step 2: Convert to fraction form
    30,347.12/45,521.10 = 11,628.10/x
  3. Step 3: Cross multiply
    30,347.12x = 45,521.10 × 11,628.10
  4. Step 4: Simplify right side
    30,347.12x = 529,323,959.81
  5. Step 5: Solve for x
    x = 529,323,959.81/30,347.12
  6. Step 6: Final answer
    x = 17,442.31

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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.