Home / 28,507.93-39,337.55-15,759.39

Finding the Fourth Proportional to 28,507.93, 39,337.55 and 15,759.39

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Solution

The fourth proportional to 28,507.93, 39,337.55 and 15,759.39 is: 21,746.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,507.93 : 39,337.55 = 15,759.39 : x
  2. Step 2: Convert to fraction form
    28,507.93/39,337.55 = 15,759.39/x
  3. Step 3: Cross multiply
    28,507.93x = 39,337.55 × 15,759.39
  4. Step 4: Simplify right side
    28,507.93x = 619,935,919.91
  5. Step 5: Solve for x
    x = 619,935,919.91/28,507.93
  6. Step 6: Final answer
    x = 21,746.08

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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.