Home / 28,208.17-38,925.52-15,633.01

Finding the Fourth Proportional to 28,208.17, 38,925.52 and 15,633.01

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Solution

The fourth proportional to 28,208.17, 38,925.52 and 15,633.01 is: 21,572.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,208.17 : 38,925.52 = 15,633.01 : x
  2. Step 2: Convert to fraction form
    28,208.17/38,925.52 = 15,633.01/x
  3. Step 3: Cross multiply
    28,208.17x = 38,925.52 × 15,633.01
  4. Step 4: Simplify right side
    28,208.17x = 608,523,043.42
  5. Step 5: Solve for x
    x = 608,523,043.42/28,208.17
  6. Step 6: Final answer
    x = 21,572.58

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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.