Home / 39,307.77-54,246.06-21,403.08

Finding the Fourth Proportional to 39,307.77, 54,246.06 and 21,403.08

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Solution

The fourth proportional to 39,307.77, 54,246.06 and 21,403.08 is: 29,536.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,307.77 : 54,246.06 = 21,403.08 : x
  2. Step 2: Convert to fraction form
    39,307.77/54,246.06 = 21,403.08/x
  3. Step 3: Cross multiply
    39,307.77x = 54,246.06 × 21,403.08
  4. Step 4: Simplify right side
    39,307.77x = 1,161,032,761.86
  5. Step 5: Solve for x
    x = 1,161,032,761.86/39,307.77
  6. Step 6: Final answer
    x = 29,536.98

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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.