Home / 29,288.00-40,407.90-18,681.05

Finding the Fourth Proportional to 29,288.00, 40,407.90 and 18,681.05

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Solution

The fourth proportional to 29,288.00, 40,407.90 and 18,681.05 is: 25,773.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,288.00 : 40,407.90 = 18,681.05 : x
  2. Step 2: Convert to fraction form
    29,288.00/40,407.90 = 18,681.05/x
  3. Step 3: Cross multiply
    29,288.00x = 40,407.90 × 18,681.05
  4. Step 4: Simplify right side
    29,288.00x = 754,861,798.26
  5. Step 5: Solve for x
    x = 754,861,798.26/29,288.00
  6. Step 6: Final answer
    x = 25,773.76

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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.