Home / 42,023.40-63,010.80-15,730.80

Finding the Fourth Proportional to 42,023.40, 63,010.80 and 15,730.80

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Solution

The fourth proportional to 42,023.40, 63,010.80 and 15,730.80 is: 23,587.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,023.40 : 63,010.80 = 15,730.80 : x
  2. Step 2: Convert to fraction form
    42,023.40/63,010.80 = 15,730.80/x
  3. Step 3: Cross multiply
    42,023.40x = 63,010.80 × 15,730.80
  4. Step 4: Simplify right side
    42,023.40x = 991,210,292.64
  5. Step 5: Solve for x
    x = 991,210,292.64/42,023.40
  6. Step 6: Final answer
    x = 23,587.10

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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.