Home / 20,804.62-28,710.40-11,373.18

Finding the Fourth Proportional to 20,804.62, 28,710.40 and 11,373.18

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Solution

The fourth proportional to 20,804.62, 28,710.40 and 11,373.18 is: 15,695.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,804.62 : 28,710.40 = 11,373.18 : x
  2. Step 2: Convert to fraction form
    20,804.62/28,710.40 = 11,373.18/x
  3. Step 3: Cross multiply
    20,804.62x = 28,710.40 × 11,373.18
  4. Step 4: Simplify right side
    20,804.62x = 326,528,547.07
  5. Step 5: Solve for x
    x = 326,528,547.07/20,804.62
  6. Step 6: Final answer
    x = 15,695.00

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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.