Home / 42,210.40-63,315.60-18,882.40

Finding the Fourth Proportional to 42,210.40, 63,315.60 and 18,882.40

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Solution

The fourth proportional to 42,210.40, 63,315.60 and 18,882.40 is: 28,323.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,210.40 : 63,315.60 = 18,882.40 : x
  2. Step 2: Convert to fraction form
    42,210.40/63,315.60 = 18,882.40/x
  3. Step 3: Cross multiply
    42,210.40x = 63,315.60 × 18,882.40
  4. Step 4: Simplify right side
    42,210.40x = 1,195,550,485.44
  5. Step 5: Solve for x
    x = 1,195,550,485.44/42,210.40
  6. Step 6: Final answer
    x = 28,323.60

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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.