Home / 42,987.54-64,484.40-18,002.46

Finding the Fourth Proportional to 42,987.54, 64,484.40 and 18,002.46

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Solution

The fourth proportional to 42,987.54, 64,484.40 and 18,002.46 is: 27,004.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,987.54 : 64,484.40 = 18,002.46 : x
  2. Step 2: Convert to fraction form
    42,987.54/64,484.40 = 18,002.46/x
  3. Step 3: Cross multiply
    42,987.54x = 64,484.40 × 18,002.46
  4. Step 4: Simplify right side
    42,987.54x = 1,160,877,831.62
  5. Step 5: Solve for x
    x = 1,160,877,831.62/42,987.54
  6. Step 6: Final answer
    x = 27,004.98

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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.