Home / 28,342.16-42,263.19-28,089.21

Finding the Fourth Proportional to 28,342.16, 42,263.19 and 28,089.21

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Solution

The fourth proportional to 28,342.16, 42,263.19 and 28,089.21 is: 41,886.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,342.16 : 42,263.19 = 28,089.21 : x
  2. Step 2: Convert to fraction form
    28,342.16/42,263.19 = 28,089.21/x
  3. Step 3: Cross multiply
    28,342.16x = 42,263.19 × 28,089.21
  4. Step 4: Simplify right side
    28,342.16x = 1,187,139,648.74
  5. Step 5: Solve for x
    x = 1,187,139,648.74/28,342.16
  6. Step 6: Final answer
    x = 41,886.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.