Home / 30,448.02-45,678.54-12,917.46

Finding the Fourth Proportional to 30,448.02, 45,678.54 and 12,917.46

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Solution

The fourth proportional to 30,448.02, 45,678.54 and 12,917.46 is: 19,378.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,448.02 : 45,678.54 = 12,917.46 : x
  2. Step 2: Convert to fraction form
    30,448.02/45,678.54 = 12,917.46/x
  3. Step 3: Cross multiply
    30,448.02x = 45,678.54 × 12,917.46
  4. Step 4: Simplify right side
    30,448.02x = 590,050,713.31
  5. Step 5: Solve for x
    x = 590,050,713.31/30,448.02
  6. Step 6: Final answer
    x = 19,378.95

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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.