Home / 39,715.32-54,808.11-21,566.82

Finding the Fourth Proportional to 39,715.32, 54,808.11 and 21,566.82

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Solution

The fourth proportional to 39,715.32, 54,808.11 and 21,566.82 is: 29,762.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,715.32 : 54,808.11 = 21,566.82 : x
  2. Step 2: Convert to fraction form
    39,715.32/54,808.11 = 21,566.82/x
  3. Step 3: Cross multiply
    39,715.32x = 54,808.11 × 21,566.82
  4. Step 4: Simplify right side
    39,715.32x = 1,182,036,642.91
  5. Step 5: Solve for x
    x = 1,182,036,642.91/39,715.32
  6. Step 6: Final answer
    x = 29,762.74

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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.