Home / 36,117.40-49,838.52-21,009.28

Finding the Fourth Proportional to 36,117.40, 49,838.52 and 21,009.28

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Solution

The fourth proportional to 36,117.40, 49,838.52 and 21,009.28 is: 28,990.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,117.40 : 49,838.52 = 21,009.28 : x
  2. Step 2: Convert to fraction form
    36,117.40/49,838.52 = 21,009.28/x
  3. Step 3: Cross multiply
    36,117.40x = 49,838.52 × 21,009.28
  4. Step 4: Simplify right side
    36,117.40x = 1,047,071,421.47
  5. Step 5: Solve for x
    x = 1,047,071,421.47/36,117.40
  6. Step 6: Final answer
    x = 28,990.78

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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.