Home / 42,686.04-64,014.03-14,215.26

Finding the Fourth Proportional to 42,686.04, 64,014.03 and 14,215.26

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Solution

The fourth proportional to 42,686.04, 64,014.03 and 14,215.26 is: 21,317.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,686.04 : 64,014.03 = 14,215.26 : x
  2. Step 2: Convert to fraction form
    42,686.04/64,014.03 = 14,215.26/x
  3. Step 3: Cross multiply
    42,686.04x = 64,014.03 × 14,215.26
  4. Step 4: Simplify right side
    42,686.04x = 909,976,320.15
  5. Step 5: Solve for x
    x = 909,976,320.15/42,686.04
  6. Step 6: Final answer
    x = 21,317.89

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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.