Home / 31,887.48-44,024.40-20,560.98

Finding the Fourth Proportional to 31,887.48, 44,024.40 and 20,560.98

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Solution

The fourth proportional to 31,887.48, 44,024.40 and 20,560.98 is: 28,386.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,887.48 : 44,024.40 = 20,560.98 : x
  2. Step 2: Convert to fraction form
    31,887.48/44,024.40 = 20,560.98/x
  3. Step 3: Cross multiply
    31,887.48x = 44,024.40 × 20,560.98
  4. Step 4: Simplify right side
    31,887.48x = 905,184,807.91
  5. Step 5: Solve for x
    x = 905,184,807.91/31,887.48
  6. Step 6: Final answer
    x = 28,386.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.