Home / 20,536.15-30,655.68-18,045.02

Finding the Fourth Proportional to 20,536.15, 30,655.68 and 18,045.02

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Solution

The fourth proportional to 20,536.15, 30,655.68 and 18,045.02 is: 26,937.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,536.15 : 30,655.68 = 18,045.02 : x
  2. Step 2: Convert to fraction form
    20,536.15/30,655.68 = 18,045.02/x
  3. Step 3: Cross multiply
    20,536.15x = 30,655.68 × 18,045.02
  4. Step 4: Simplify right side
    20,536.15x = 553,182,268.49
  5. Step 5: Solve for x
    x = 553,182,268.49/20,536.15
  6. Step 6: Final answer
    x = 26,937.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.