Home / 30,020.64-45,006.40-17,509.92

Finding the Fourth Proportional to 30,020.64, 45,006.40 and 17,509.92

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Solution

The fourth proportional to 30,020.64, 45,006.40 and 17,509.92 is: 26,250.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,020.64 : 45,006.40 = 17,509.92 : x
  2. Step 2: Convert to fraction form
    30,020.64/45,006.40 = 17,509.92/x
  3. Step 3: Cross multiply
    30,020.64x = 45,006.40 × 17,509.92
  4. Step 4: Simplify right side
    30,020.64x = 788,058,463.49
  5. Step 5: Solve for x
    x = 788,058,463.49/30,020.64
  6. Step 6: Final answer
    x = 26,250.56

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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.