Home / 21,082.95-29,064.56-15,036.17

Finding the Fourth Proportional to 21,082.95, 29,064.56 and 15,036.17

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Solution

The fourth proportional to 21,082.95, 29,064.56 and 15,036.17 is: 20,728.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,082.95 : 29,064.56 = 15,036.17 : x
  2. Step 2: Convert to fraction form
    21,082.95/29,064.56 = 15,036.17/x
  3. Step 3: Cross multiply
    21,082.95x = 29,064.56 × 15,036.17
  4. Step 4: Simplify right side
    21,082.95x = 437,019,444.63
  5. Step 5: Solve for x
    x = 437,019,444.63/21,082.95
  6. Step 6: Final answer
    x = 20,728.57

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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.