Home / 30,079.35-45,089.28-14,256.60

Finding the Fourth Proportional to 30,079.35, 45,089.28 and 14,256.60

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Solution

The fourth proportional to 30,079.35, 45,089.28 and 14,256.60 is: 21,370.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,079.35 : 45,089.28 = 14,256.60 : x
  2. Step 2: Convert to fraction form
    30,079.35/45,089.28 = 14,256.60/x
  3. Step 3: Cross multiply
    30,079.35x = 45,089.28 × 14,256.60
  4. Step 4: Simplify right side
    30,079.35x = 642,819,829.25
  5. Step 5: Solve for x
    x = 642,819,829.25/30,079.35
  6. Step 6: Final answer
    x = 21,370.80

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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.