Home / 42,031.04-63,055.80-12,451.18

Finding the Fourth Proportional to 42,031.04, 63,055.80 and 12,451.18

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Solution

The fourth proportional to 42,031.04, 63,055.80 and 12,451.18 is: 18,679.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,031.04 : 63,055.80 = 12,451.18 : x
  2. Step 2: Convert to fraction form
    42,031.04/63,055.80 = 12,451.18/x
  3. Step 3: Cross multiply
    42,031.04x = 63,055.80 × 12,451.18
  4. Step 4: Simplify right side
    42,031.04x = 785,119,115.84
  5. Step 5: Solve for x
    x = 785,119,115.84/42,031.04
  6. Step 6: Final answer
    x = 18,679.51

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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.