Home / 30,341.60-45,520.40-10,620.16

Finding the Fourth Proportional to 30,341.60, 45,520.40 and 10,620.16

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Solution

The fourth proportional to 30,341.60, 45,520.40 and 10,620.16 is: 15,933.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,341.60 : 45,520.40 = 10,620.16 : x
  2. Step 2: Convert to fraction form
    30,341.60/45,520.40 = 10,620.16/x
  3. Step 3: Cross multiply
    30,341.60x = 45,520.40 × 10,620.16
  4. Step 4: Simplify right side
    30,341.60x = 483,433,931.26
  5. Step 5: Solve for x
    x = 483,433,931.26/30,341.60
  6. Step 6: Final answer
    x = 15,933.04

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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.