Home / 42,392.40-63,598.59-12,810.48

Finding the Fourth Proportional to 42,392.40, 63,598.59 and 12,810.48

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Solution

The fourth proportional to 42,392.40, 63,598.59 and 12,810.48 is: 19,218.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,392.40 : 63,598.59 = 12,810.48 : x
  2. Step 2: Convert to fraction form
    42,392.40/63,598.59 = 12,810.48/x
  3. Step 3: Cross multiply
    42,392.40x = 63,598.59 × 12,810.48
  4. Step 4: Simplify right side
    42,392.40x = 814,728,465.22
  5. Step 5: Solve for x
    x = 814,728,465.22/42,392.40
  6. Step 6: Final answer
    x = 19,218.74

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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.