Home / 30,341.40-45,508.84-10,620.32

Finding the Fourth Proportional to 30,341.40, 45,508.84 and 10,620.32

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Solution

The fourth proportional to 30,341.40, 45,508.84 and 10,620.32 is: 15,929.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,341.40 : 45,508.84 = 10,620.32 : x
  2. Step 2: Convert to fraction form
    30,341.40/45,508.84 = 10,620.32/x
  3. Step 3: Cross multiply
    30,341.40x = 45,508.84 × 10,620.32
  4. Step 4: Simplify right side
    30,341.40x = 483,318,443.63
  5. Step 5: Solve for x
    x = 483,318,443.63/30,341.40
  6. Step 6: Final answer
    x = 15,929.34

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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.