Home / 30,302.48-45,420.60-14,685.20

Finding the Fourth Proportional to 30,302.48, 45,420.60 and 14,685.20

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Solution

The fourth proportional to 30,302.48, 45,420.60 and 14,685.20 is: 22,011.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,302.48 : 45,420.60 = 14,685.20 : x
  2. Step 2: Convert to fraction form
    30,302.48/45,420.60 = 14,685.20/x
  3. Step 3: Cross multiply
    30,302.48x = 45,420.60 × 14,685.20
  4. Step 4: Simplify right side
    30,302.48x = 667,010,595.12
  5. Step 5: Solve for x
    x = 667,010,595.12/30,302.48
  6. Step 6: Final answer
    x = 22,011.75

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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.