Home / 27,990.37-41,970.93-10,445.77

Finding the Fourth Proportional to 27,990.37, 41,970.93 and 10,445.77

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Solution

The fourth proportional to 27,990.37, 41,970.93 and 10,445.77 is: 15,663.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,990.37 : 41,970.93 = 10,445.77 : x
  2. Step 2: Convert to fraction form
    27,990.37/41,970.93 = 10,445.77/x
  3. Step 3: Cross multiply
    27,990.37x = 41,970.93 × 10,445.77
  4. Step 4: Simplify right side
    27,990.37x = 438,418,681.47
  5. Step 5: Solve for x
    x = 438,418,681.47/27,990.37
  6. Step 6: Final answer
    x = 15,663.20

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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.