Home / 19,215.24-26,506.95-15,634.20

Finding the Fourth Proportional to 19,215.24, 26,506.95 and 15,634.20

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Solution

The fourth proportional to 19,215.24, 26,506.95 and 15,634.20 is: 21,567.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,215.24 : 26,506.95 = 15,634.20 : x
  2. Step 2: Convert to fraction form
    19,215.24/26,506.95 = 15,634.20/x
  3. Step 3: Cross multiply
    19,215.24x = 26,506.95 × 15,634.20
  4. Step 4: Simplify right side
    19,215.24x = 414,415,061.55
  5. Step 5: Solve for x
    x = 414,415,061.55/19,215.24
  6. Step 6: Final answer
    x = 21,567.00

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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.