Home / 42,547.09-63,815.77-11,384.77

Finding the Fourth Proportional to 42,547.09, 63,815.77 and 11,384.77

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Solution

The fourth proportional to 42,547.09, 63,815.77 and 11,384.77 is: 17,075.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,547.09 : 63,815.77 = 11,384.77 : x
  2. Step 2: Convert to fraction form
    42,547.09/63,815.77 = 11,384.77/x
  3. Step 3: Cross multiply
    42,547.09x = 63,815.77 × 11,384.77
  4. Step 4: Simplify right side
    42,547.09x = 726,527,487.82
  5. Step 5: Solve for x
    x = 726,527,487.82/42,547.09
  6. Step 6: Final answer
    x = 17,075.85

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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.