Home / 30,007.13-45,037.98-15,978.92

Finding the Fourth Proportional to 30,007.13, 45,037.98 and 15,978.92

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Solution

The fourth proportional to 30,007.13, 45,037.98 and 15,978.92 is: 23,982.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,007.13 : 45,037.98 = 15,978.92 : x
  2. Step 2: Convert to fraction form
    30,007.13/45,037.98 = 15,978.92/x
  3. Step 3: Cross multiply
    30,007.13x = 45,037.98 × 15,978.92
  4. Step 4: Simplify right side
    30,007.13x = 719,658,054.19
  5. Step 5: Solve for x
    x = 719,658,054.19/30,007.13
  6. Step 6: Final answer
    x = 23,982.91

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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.