Home / 28,264.76-39,006.56-15,689.52

Finding the Fourth Proportional to 28,264.76, 39,006.56 and 15,689.52

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Solution

The fourth proportional to 28,264.76, 39,006.56 and 15,689.52 is: 21,652.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,264.76 : 39,006.56 = 15,689.52 : x
  2. Step 2: Convert to fraction form
    28,264.76/39,006.56 = 15,689.52/x
  3. Step 3: Cross multiply
    28,264.76x = 39,006.56 × 15,689.52
  4. Step 4: Simplify right side
    28,264.76x = 611,994,203.25
  5. Step 5: Solve for x
    x = 611,994,203.25/28,264.76
  6. Step 6: Final answer
    x = 21,652.20

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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.