Home / 42,551.80-63,837.18-12,971.95

Finding the Fourth Proportional to 42,551.80, 63,837.18 and 12,971.95

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Solution

The fourth proportional to 42,551.80, 63,837.18 and 12,971.95 is: 19,460.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,551.80 : 63,837.18 = 12,971.95 : x
  2. Step 2: Convert to fraction form
    42,551.80/63,837.18 = 12,971.95/x
  3. Step 3: Cross multiply
    42,551.80x = 63,837.18 × 12,971.95
  4. Step 4: Simplify right side
    42,551.80x = 828,092,547.51
  5. Step 5: Solve for x
    x = 828,092,547.51/42,551.80
  6. Step 6: Final answer
    x = 19,460.81

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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.