Home / 30,326.02-45,510.13-12,556.77

Finding the Fourth Proportional to 30,326.02, 45,510.13 and 12,556.77

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Solution

The fourth proportional to 30,326.02, 45,510.13 and 12,556.77 is: 18,843.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,326.02 : 45,510.13 = 12,556.77 : x
  2. Step 2: Convert to fraction form
    30,326.02/45,510.13 = 12,556.77/x
  3. Step 3: Cross multiply
    30,326.02x = 45,510.13 × 12,556.77
  4. Step 4: Simplify right side
    30,326.02x = 571,460,080.11
  5. Step 5: Solve for x
    x = 571,460,080.11/30,326.02
  6. Step 6: Final answer
    x = 18,843.89

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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.