Home / 35,653.81-49,207.40-20,543.58

Finding the Fourth Proportional to 35,653.81, 49,207.40 and 20,543.58

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Solution

The fourth proportional to 35,653.81, 49,207.40 and 20,543.58 is: 28,353.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,653.81 : 49,207.40 = 20,543.58 : x
  2. Step 2: Convert to fraction form
    35,653.81/49,207.40 = 20,543.58/x
  3. Step 3: Cross multiply
    35,653.81x = 49,207.40 × 20,543.58
  4. Step 4: Simplify right side
    35,653.81x = 1,010,896,158.49
  5. Step 5: Solve for x
    x = 1,010,896,158.49/35,653.81
  6. Step 6: Final answer
    x = 28,353.10

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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.