Home / 38,790.40-58,041.60-28,422.40

Finding the Fourth Proportional to 38,790.40, 58,041.60 and 28,422.40

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Solution

The fourth proportional to 38,790.40, 58,041.60 and 28,422.40 is: 42,528.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,790.40 : 58,041.60 = 28,422.40 : x
  2. Step 2: Convert to fraction form
    38,790.40/58,041.60 = 28,422.40/x
  3. Step 3: Cross multiply
    38,790.40x = 58,041.60 × 28,422.40
  4. Step 4: Simplify right side
    38,790.40x = 1,649,681,571.84
  5. Step 5: Solve for x
    x = 1,649,681,571.84/38,790.40
  6. Step 6: Final answer
    x = 42,528.09

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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.