Home / 37,720.12-52,053.66-20,953

Finding the Fourth Proportional to 37,720.12, 52,053.66 and 20,953

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Solution

The fourth proportional to 37,720.12, 52,053.66 and 20,953 is: 28,915.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,720.12 : 52,053.66 = 20,953 : x
  2. Step 2: Convert to fraction form
    37,720.12/52,053.66 = 20,953/x
  3. Step 3: Cross multiply
    37,720.12x = 52,053.66 × 20,953
  4. Step 4: Simplify right side
    37,720.12x = 1,090,680,337.98
  5. Step 5: Solve for x
    x = 1,090,680,337.98/37,720.12
  6. Step 6: Final answer
    x = 28,915.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.