Home / 28,264.48-39,017.70-20,711.13

Finding the Fourth Proportional to 28,264.48, 39,017.70 and 20,711.13

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Solution

The fourth proportional to 28,264.48, 39,017.70 and 20,711.13 is: 28,590.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,264.48 : 39,017.70 = 20,711.13 : x
  2. Step 2: Convert to fraction form
    28,264.48/39,017.70 = 20,711.13/x
  3. Step 3: Cross multiply
    28,264.48x = 39,017.70 × 20,711.13
  4. Step 4: Simplify right side
    28,264.48x = 808,100,510.68
  5. Step 5: Solve for x
    x = 808,100,510.68/28,264.48
  6. Step 6: Final answer
    x = 28,590.68

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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.