Home / 32,649.84-45,043.86-21,315.72

Finding the Fourth Proportional to 32,649.84, 45,043.86 and 21,315.72

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Solution

The fourth proportional to 32,649.84, 45,043.86 and 21,315.72 is: 29,407.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,649.84 : 45,043.86 = 21,315.72 : x
  2. Step 2: Convert to fraction form
    32,649.84/45,043.86 = 21,315.72/x
  3. Step 3: Cross multiply
    32,649.84x = 45,043.86 × 21,315.72
  4. Step 4: Simplify right side
    32,649.84x = 960,142,307.48
  5. Step 5: Solve for x
    x = 960,142,307.48/32,649.84
  6. Step 6: Final answer
    x = 29,407.26

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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.