Home / 19,255.12-26,587.08-15,075.28

Finding the Fourth Proportional to 19,255.12, 26,587.08 and 15,075.28

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Solution

The fourth proportional to 19,255.12, 26,587.08 and 15,075.28 is: 20,815.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,255.12 : 26,587.08 = 15,075.28 : x
  2. Step 2: Convert to fraction form
    19,255.12/26,587.08 = 15,075.28/x
  3. Step 3: Cross multiply
    19,255.12x = 26,587.08 × 15,075.28
  4. Step 4: Simplify right side
    19,255.12x = 400,807,675.38
  5. Step 5: Solve for x
    x = 400,807,675.38/19,255.12
  6. Step 6: Final answer
    x = 20,815.64

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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.