Home / 28,101.02-38,780.19-15,526.58

Finding the Fourth Proportional to 28,101.02, 38,780.19 and 15,526.58

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Solution

The fourth proportional to 28,101.02, 38,780.19 and 15,526.58 is: 21,427.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,101.02 : 38,780.19 = 15,526.58 : x
  2. Step 2: Convert to fraction form
    28,101.02/38,780.19 = 15,526.58/x
  3. Step 3: Cross multiply
    28,101.02x = 38,780.19 × 15,526.58
  4. Step 4: Simplify right side
    28,101.02x = 602,123,722.45
  5. Step 5: Solve for x
    x = 602,123,722.45/28,101.02
  6. Step 6: Final answer
    x = 21,427.11

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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.