Home / 23,681.78-32,678.55-13,070.75

Finding the Fourth Proportional to 23,681.78, 32,678.55 and 13,070.75

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Solution

The fourth proportional to 23,681.78, 32,678.55 and 13,070.75 is: 18,036.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,681.78 : 32,678.55 = 13,070.75 : x
  2. Step 2: Convert to fraction form
    23,681.78/32,678.55 = 13,070.75/x
  3. Step 3: Cross multiply
    23,681.78x = 32,678.55 × 13,070.75
  4. Step 4: Simplify right side
    23,681.78x = 427,133,157.41
  5. Step 5: Solve for x
    x = 427,133,157.41/23,681.78
  6. Step 6: Final answer
    x = 18,036.36

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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.