Home / 30,237.41-45,356.08-12,478.06

Finding the Fourth Proportional to 30,237.41, 45,356.08 and 12,478.06

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Solution

The fourth proportional to 30,237.41, 45,356.08 and 12,478.06 is: 18,717.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,237.41 : 45,356.08 = 12,478.06 : x
  2. Step 2: Convert to fraction form
    30,237.41/45,356.08 = 12,478.06/x
  3. Step 3: Cross multiply
    30,237.41x = 45,356.08 × 12,478.06
  4. Step 4: Simplify right side
    30,237.41x = 565,955,887.60
  5. Step 5: Solve for x
    x = 565,955,887.60/30,237.41
  6. Step 6: Final answer
    x = 18,717.08

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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.