Home / 30,119.95-45,118.56-14,276.96

Finding the Fourth Proportional to 30,119.95, 45,118.56 and 14,276.96

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Solution

The fourth proportional to 30,119.95, 45,118.56 and 14,276.96 is: 21,386.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,119.95 : 45,118.56 = 14,276.96 : x
  2. Step 2: Convert to fraction form
    30,119.95/45,118.56 = 14,276.96/x
  3. Step 3: Cross multiply
    30,119.95x = 45,118.56 × 14,276.96
  4. Step 4: Simplify right side
    30,119.95x = 644,155,650.78
  5. Step 5: Solve for x
    x = 644,155,650.78/30,119.95
  6. Step 6: Final answer
    x = 21,386.35

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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.