Home / 32,868.16-45,339.69-21,539.50

Finding the Fourth Proportional to 32,868.16, 45,339.69 and 21,539.50

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Solution

The fourth proportional to 32,868.16, 45,339.69 and 21,539.50 is: 29,712.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,868.16 : 45,339.69 = 21,539.50 : x
  2. Step 2: Convert to fraction form
    32,868.16/45,339.69 = 21,539.50/x
  3. Step 3: Cross multiply
    32,868.16x = 45,339.69 × 21,539.50
  4. Step 4: Simplify right side
    32,868.16x = 976,594,252.76
  5. Step 5: Solve for x
    x = 976,594,252.76/32,868.16
  6. Step 6: Final answer
    x = 29,712.47

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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.