Home / 28,292.90-39,038.79-19,225.43

Finding the Fourth Proportional to 28,292.90, 39,038.79 and 19,225.43

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Solution

The fourth proportional to 28,292.90, 39,038.79 and 19,225.43 is: 26,527.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,292.90 : 39,038.79 = 19,225.43 : x
  2. Step 2: Convert to fraction form
    28,292.90/39,038.79 = 19,225.43/x
  3. Step 3: Cross multiply
    28,292.90x = 39,038.79 × 19,225.43
  4. Step 4: Simplify right side
    28,292.90x = 750,537,275.72
  5. Step 5: Solve for x
    x = 750,537,275.72/28,292.90
  6. Step 6: Final answer
    x = 26,527.41

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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.