Home / 42,055.20-63,089.28-19,880.64

Finding the Fourth Proportional to 42,055.20, 63,089.28 and 19,880.64

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Solution

The fourth proportional to 42,055.20, 63,089.28 and 19,880.64 is: 29,824.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,055.20 : 63,089.28 = 19,880.64 : x
  2. Step 2: Convert to fraction form
    42,055.20/63,089.28 = 19,880.64/x
  3. Step 3: Cross multiply
    42,055.20x = 63,089.28 × 19,880.64
  4. Step 4: Simplify right side
    42,055.20x = 1,254,255,263.54
  5. Step 5: Solve for x
    x = 1,254,255,263.54/42,055.20
  6. Step 6: Final answer
    x = 29,824.02

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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.