Home / 39,284.18-58,928.16-12,988.34

Finding the Fourth Proportional to 39,284.18, 58,928.16 and 12,988.34

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Solution

The fourth proportional to 39,284.18, 58,928.16 and 12,988.34 is: 19,483.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,284.18 : 58,928.16 = 12,988.34 : x
  2. Step 2: Convert to fraction form
    39,284.18/58,928.16 = 12,988.34/x
  3. Step 3: Cross multiply
    39,284.18x = 58,928.16 × 12,988.34
  4. Step 4: Simplify right side
    39,284.18x = 765,378,977.65
  5. Step 5: Solve for x
    x = 765,378,977.65/39,284.18
  6. Step 6: Final answer
    x = 19,483.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.