Home / 30,570.08-42,150.70-28,302.89

Finding the Fourth Proportional to 30,570.08, 42,150.70 and 28,302.89

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Solution

The fourth proportional to 30,570.08, 42,150.70 and 28,302.89 is: 39,024.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,570.08 : 42,150.70 = 28,302.89 : x
  2. Step 2: Convert to fraction form
    30,570.08/42,150.70 = 28,302.89/x
  3. Step 3: Cross multiply
    30,570.08x = 42,150.70 × 28,302.89
  4. Step 4: Simplify right side
    30,570.08x = 1,192,986,660.14
  5. Step 5: Solve for x
    x = 1,192,986,660.14/30,570.08
  6. Step 6: Final answer
    x = 39,024.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.