Home / 30,279.02-45,407.01-13,851.50

Finding the Fourth Proportional to 30,279.02, 45,407.01 and 13,851.50

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Solution

The fourth proportional to 30,279.02, 45,407.01 and 13,851.50 is: 20,771.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,279.02 : 45,407.01 = 13,851.50 : x
  2. Step 2: Convert to fraction form
    30,279.02/45,407.01 = 13,851.50/x
  3. Step 3: Cross multiply
    30,279.02x = 45,407.01 × 13,851.50
  4. Step 4: Simplify right side
    30,279.02x = 628,955,199.02
  5. Step 5: Solve for x
    x = 628,955,199.02/30,279.02
  6. Step 6: Final answer
    x = 20,771.98

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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.