Home / 21,541.98-32,101.53-20,837.28

Finding the Fourth Proportional to 21,541.98, 32,101.53 and 20,837.28

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Solution

The fourth proportional to 21,541.98, 32,101.53 and 20,837.28 is: 31,051.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,541.98 : 32,101.53 = 20,837.28 : x
  2. Step 2: Convert to fraction form
    21,541.98/32,101.53 = 20,837.28/x
  3. Step 3: Cross multiply
    21,541.98x = 32,101.53 × 20,837.28
  4. Step 4: Simplify right side
    21,541.98x = 668,908,569.04
  5. Step 5: Solve for x
    x = 668,908,569.04/21,541.98
  6. Step 6: Final answer
    x = 31,051.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.