Home / 30,358.60-45,537.90-20,444.20

Finding the Fourth Proportional to 30,358.60, 45,537.90 and 20,444.20

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Solution

The fourth proportional to 30,358.60, 45,537.90 and 20,444.20 is: 30,666.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,358.60 : 45,537.90 = 20,444.20 : x
  2. Step 2: Convert to fraction form
    30,358.60/45,537.90 = 20,444.20/x
  3. Step 3: Cross multiply
    30,358.60x = 45,537.90 × 20,444.20
  4. Step 4: Simplify right side
    30,358.60x = 930,985,935.18
  5. Step 5: Solve for x
    x = 930,985,935.18/30,358.60
  6. Step 6: Final answer
    x = 30,666.30

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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.