Home / 42,005.64-63,008.92-17,986.70

Finding the Fourth Proportional to 42,005.64, 63,008.92 and 17,986.70

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Solution

The fourth proportional to 42,005.64, 63,008.92 and 17,986.70 is: 26,980.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,005.64 : 63,008.92 = 17,986.70 : x
  2. Step 2: Convert to fraction form
    42,005.64/63,008.92 = 17,986.70/x
  3. Step 3: Cross multiply
    42,005.64x = 63,008.92 × 17,986.70
  4. Step 4: Simplify right side
    42,005.64x = 1,133,322,541.36
  5. Step 5: Solve for x
    x = 1,133,322,541.36/42,005.64
  6. Step 6: Final answer
    x = 26,980.25

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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.