Home / 30,065.90-45,109.80-14,275.76

Finding the Fourth Proportional to 30,065.90, 45,109.80 and 14,275.76

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Solution

The fourth proportional to 30,065.90, 45,109.80 and 14,275.76 is: 21,418.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,065.90 : 45,109.80 = 14,275.76 : x
  2. Step 2: Convert to fraction form
    30,065.90/45,109.80 = 14,275.76/x
  3. Step 3: Cross multiply
    30,065.90x = 45,109.80 × 14,275.76
  4. Step 4: Simplify right side
    30,065.90x = 643,976,678.45
  5. Step 5: Solve for x
    x = 643,976,678.45/30,065.90
  6. Step 6: Final answer
    x = 21,418.84

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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.