Home / 28,407.04-42,775.36-21,063.52

Finding the Fourth Proportional to 28,407.04, 42,775.36 and 21,063.52

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Solution

The fourth proportional to 28,407.04, 42,775.36 and 21,063.52 is: 31,717.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,407.04 : 42,775.36 = 21,063.52 : x
  2. Step 2: Convert to fraction form
    28,407.04/42,775.36 = 21,063.52/x
  3. Step 3: Cross multiply
    28,407.04x = 42,775.36 × 21,063.52
  4. Step 4: Simplify right side
    28,407.04x = 900,999,650.87
  5. Step 5: Solve for x
    x = 900,999,650.87/28,407.04
  6. Step 6: Final answer
    x = 31,717.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.