Home / 30,432.21-45,645.74-10,440.06

Finding the Fourth Proportional to 30,432.21, 45,645.74 and 10,440.06

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Solution

The fourth proportional to 30,432.21, 45,645.74 and 10,440.06 is: 15,659.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,432.21 : 45,645.74 = 10,440.06 : x
  2. Step 2: Convert to fraction form
    30,432.21/45,645.74 = 10,440.06/x
  3. Step 3: Cross multiply
    30,432.21x = 45,645.74 × 10,440.06
  4. Step 4: Simplify right side
    30,432.21x = 476,544,264.34
  5. Step 5: Solve for x
    x = 476,544,264.34/30,432.21
  6. Step 6: Final answer
    x = 15,659.21

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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.