Home / 30,048.32-45,070.32-13,409.84

Finding the Fourth Proportional to 30,048.32, 45,070.32 and 13,409.84

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Solution

The fourth proportional to 30,048.32, 45,070.32 and 13,409.84 is: 20,113.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,048.32 : 45,070.32 = 13,409.84 : x
  2. Step 2: Convert to fraction form
    30,048.32/45,070.32 = 13,409.84/x
  3. Step 3: Cross multiply
    30,048.32x = 45,070.32 × 13,409.84
  4. Step 4: Simplify right side
    30,048.32x = 604,385,779.95
  5. Step 5: Solve for x
    x = 604,385,779.95/30,048.32
  6. Step 6: Final answer
    x = 20,113.80

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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.