Home / 21,243,228.12-31,864,737.06-18,355,808.50

Finding the Fourth Proportional to 21,243,228.12, 31,864,737.06 and 18,355,808.50

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Solution

The fourth proportional to 21,243,228.12, 31,864,737.06 and 18,355,808.50 is: 27,533,621.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,243,228.12 : 31,864,737.06 = 18,355,808.50 : x
  2. Step 2: Convert to fraction form
    21,243,228.12/31,864,737.06 = 18,355,808.50/x
  3. Step 3: Cross multiply
    21,243,228.12x = 31,864,737.06 × 18,355,808.50
  4. Step 4: Simplify right side
    21,243,228.12x = 584,903,011,376,213
  5. Step 5: Solve for x
    x = 584,903,011,376,213/21,243,228.12
  6. Step 6: Final answer
    x = 27,533,621.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.