Home / 30,585.20-45,858.80-20,042.24

Finding the Fourth Proportional to 30,585.20, 45,858.80 and 20,042.24

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Solution

The fourth proportional to 30,585.20, 45,858.80 and 20,042.24 is: 30,050.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,585.20 : 45,858.80 = 20,042.24 : x
  2. Step 2: Convert to fraction form
    30,585.20/45,858.80 = 20,042.24/x
  3. Step 3: Cross multiply
    30,585.20x = 45,858.80 × 20,042.24
  4. Step 4: Simplify right side
    30,585.20x = 919,113,075.71
  5. Step 5: Solve for x
    x = 919,113,075.71/30,585.20
  6. Step 6: Final answer
    x = 30,050.91

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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.