Home / 30,570.19-45,852.20-8,385.79

Finding the Fourth Proportional to 30,570.19, 45,852.20 and 8,385.79

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Solution

The fourth proportional to 30,570.19, 45,852.20 and 8,385.79 is: 12,577.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,570.19 : 45,852.20 = 8,385.79 : x
  2. Step 2: Convert to fraction form
    30,570.19/45,852.20 = 8,385.79/x
  3. Step 3: Cross multiply
    30,570.19x = 45,852.20 × 8,385.79
  4. Step 4: Simplify right side
    30,570.19x = 384,506,920.24
  5. Step 5: Solve for x
    x = 384,506,920.24/30,570.19
  6. Step 6: Final answer
    x = 12,577.84

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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.