Home / 39,985.47-60,014.61-21,281.22

Finding the Fourth Proportional to 39,985.47, 60,014.61 and 21,281.22

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Solution

The fourth proportional to 39,985.47, 60,014.61 and 21,281.22 is: 31,941.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,985.47 : 60,014.61 = 21,281.22 : x
  2. Step 2: Convert to fraction form
    39,985.47/60,014.61 = 21,281.22/x
  3. Step 3: Cross multiply
    39,985.47x = 60,014.61 × 21,281.22
  4. Step 4: Simplify right side
    39,985.47x = 1,277,184,118.62
  5. Step 5: Solve for x
    x = 1,277,184,118.62/39,985.47
  6. Step 6: Final answer
    x = 31,941.21

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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.