Home / 39,972.58-59,988.12-19,210.66

Finding the Fourth Proportional to 39,972.58, 59,988.12 and 19,210.66

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Solution

The fourth proportional to 39,972.58, 59,988.12 and 19,210.66 is: 28,830.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,972.58 : 59,988.12 = 19,210.66 : x
  2. Step 2: Convert to fraction form
    39,972.58/59,988.12 = 19,210.66/x
  3. Step 3: Cross multiply
    39,972.58x = 59,988.12 × 19,210.66
  4. Step 4: Simplify right side
    39,972.58x = 1,152,411,377.36
  5. Step 5: Solve for x
    x = 1,152,411,377.36/39,972.58
  6. Step 6: Final answer
    x = 28,830.05

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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.