Home / 28,296.24-42,448.76-8,570.10

Finding the Fourth Proportional to 28,296.24, 42,448.76 and 8,570.10

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Solution

The fourth proportional to 28,296.24, 42,448.76 and 8,570.10 is: 12,856.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,296.24 : 42,448.76 = 8,570.10 : x
  2. Step 2: Convert to fraction form
    28,296.24/42,448.76 = 8,570.10/x
  3. Step 3: Cross multiply
    28,296.24x = 42,448.76 × 8,570.10
  4. Step 4: Simplify right side
    28,296.24x = 363,790,075.23
  5. Step 5: Solve for x
    x = 363,790,075.23/28,296.24
  6. Step 6: Final answer
    x = 12,856.48

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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.