Home / 28,563.36-39,417.96-15,988.08

Finding the Fourth Proportional to 28,563.36, 39,417.96 and 15,988.08

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Solution

The fourth proportional to 28,563.36, 39,417.96 and 15,988.08 is: 22,063.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,563.36 : 39,417.96 = 15,988.08 : x
  2. Step 2: Convert to fraction form
    28,563.36/39,417.96 = 15,988.08/x
  3. Step 3: Cross multiply
    28,563.36x = 39,417.96 × 15,988.08
  4. Step 4: Simplify right side
    28,563.36x = 630,217,497.92
  5. Step 5: Solve for x
    x = 630,217,497.92/28,563.36
  6. Step 6: Final answer
    x = 22,063.84

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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.