Home / 28,347.01-42,505.93-12,756.13

Finding the Fourth Proportional to 28,347.01, 42,505.93 and 12,756.13

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Solution

The fourth proportional to 28,347.01, 42,505.93 and 12,756.13 is: 19,127.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,347.01 : 42,505.93 = 12,756.13 : x
  2. Step 2: Convert to fraction form
    28,347.01/42,505.93 = 12,756.13/x
  3. Step 3: Cross multiply
    28,347.01x = 42,505.93 × 12,756.13
  4. Step 4: Simplify right side
    28,347.01x = 542,210,892.54
  5. Step 5: Solve for x
    x = 542,210,892.54/28,347.01
  6. Step 6: Final answer
    x = 19,127.63

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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.