Home / 20,323,253.64-28,046,506.89-11,502,704.76

Finding the Fourth Proportional to 20,323,253.64, 28,046,506.89 and 11,502,704.76

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Solution

The fourth proportional to 20,323,253.64, 28,046,506.89 and 11,502,704.76 is: 15,873,968.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,323,253.64 : 28,046,506.89 = 11,502,704.76 : x
  2. Step 2: Convert to fraction form
    20,323,253.64/28,046,506.89 = 11,502,704.76/x
  3. Step 3: Cross multiply
    20,323,253.64x = 28,046,506.89 × 11,502,704.76
  4. Step 4: Simplify right side
    20,323,253.64x = 322,610,688,304,975.81
  5. Step 5: Solve for x
    x = 322,610,688,304,975.81/20,323,253.64
  6. Step 6: Final answer
    x = 15,873,968.51

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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.