Home / 28,036.02-38,689.47-15,460.50

Finding the Fourth Proportional to 28,036.02, 38,689.47 and 15,460.50

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Solution

The fourth proportional to 28,036.02, 38,689.47 and 15,460.50 is: 21,335.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,036.02 : 38,689.47 = 15,460.50 : x
  2. Step 2: Convert to fraction form
    28,036.02/38,689.47 = 15,460.50/x
  3. Step 3: Cross multiply
    28,036.02x = 38,689.47 × 15,460.50
  4. Step 4: Simplify right side
    28,036.02x = 598,158,550.94
  5. Step 5: Solve for x
    x = 598,158,550.94/28,036.02
  6. Step 6: Final answer
    x = 21,335.36

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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.