Home / 28,988.48-40,002.72-17,808.32

Finding the Fourth Proportional to 28,988.48, 40,002.72 and 17,808.32

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Solution

The fourth proportional to 28,988.48, 40,002.72 and 17,808.32 is: 24,574.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,988.48 : 40,002.72 = 17,808.32 : x
  2. Step 2: Convert to fraction form
    28,988.48/40,002.72 = 17,808.32/x
  3. Step 3: Cross multiply
    28,988.48x = 40,002.72 × 17,808.32
  4. Step 4: Simplify right side
    28,988.48x = 712,381,238.63
  5. Step 5: Solve for x
    x = 712,381,238.63/28,988.48
  6. Step 6: Final answer
    x = 24,574.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.