Home / 42,541.20-63,813.36-21,740.40

Finding the Fourth Proportional to 42,541.20, 63,813.36 and 21,740.40

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Solution

The fourth proportional to 42,541.20, 63,813.36 and 21,740.40 is: 32,611.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,541.20 : 63,813.36 = 21,740.40 : x
  2. Step 2: Convert to fraction form
    42,541.20/63,813.36 = 21,740.40/x
  3. Step 3: Cross multiply
    42,541.20x = 63,813.36 × 21,740.40
  4. Step 4: Simplify right side
    42,541.20x = 1,387,327,971.74
  5. Step 5: Solve for x
    x = 1,387,327,971.74/42,541.20
  6. Step 6: Final answer
    x = 32,611.40

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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.