Home / 30,897.02-42,637.80-16,749.86

Finding the Fourth Proportional to 30,897.02, 42,637.80 and 16,749.86

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Solution

The fourth proportional to 30,897.02, 42,637.80 and 16,749.86 is: 23,114.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,897.02 : 42,637.80 = 16,749.86 : x
  2. Step 2: Convert to fraction form
    30,897.02/42,637.80 = 16,749.86/x
  3. Step 3: Cross multiply
    30,897.02x = 42,637.80 × 16,749.86
  4. Step 4: Simplify right side
    30,897.02x = 714,177,180.71
  5. Step 5: Solve for x
    x = 714,177,180.71/30,897.02
  6. Step 6: Final answer
    x = 23,114.76

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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.