Home / 28,275.48-42,409.98-8,549.28

Finding the Fourth Proportional to 28,275.48, 42,409.98 and 8,549.28

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Solution

The fourth proportional to 28,275.48, 42,409.98 and 8,549.28 is: 12,822.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,275.48 : 42,409.98 = 8,549.28 : x
  2. Step 2: Convert to fraction form
    28,275.48/42,409.98 = 8,549.28/x
  3. Step 3: Cross multiply
    28,275.48x = 42,409.98 × 8,549.28
  4. Step 4: Simplify right side
    28,275.48x = 362,574,793.81
  5. Step 5: Solve for x
    x = 362,574,793.81/28,275.48
  6. Step 6: Final answer
    x = 12,822.94

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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.