Home / 43,291.95-64,950.48-21,118.20

Finding the Fourth Proportional to 43,291.95, 64,950.48 and 21,118.20

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Solution

The fourth proportional to 43,291.95, 64,950.48 and 21,118.20 is: 31,683.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,291.95 : 64,950.48 = 21,118.20 : x
  2. Step 2: Convert to fraction form
    43,291.95/64,950.48 = 21,118.20/x
  3. Step 3: Cross multiply
    43,291.95x = 64,950.48 × 21,118.20
  4. Step 4: Simplify right side
    43,291.95x = 1,371,637,226.74
  5. Step 5: Solve for x
    x = 1,371,637,226.74/43,291.95
  6. Step 6: Final answer
    x = 31,683.42

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1.5x scale

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.