Home / 30,804.55-42,510.29-16,657.40

Finding the Fourth Proportional to 30,804.55, 42,510.29 and 16,657.40

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Solution

The fourth proportional to 30,804.55, 42,510.29 and 16,657.40 is: 22,987.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,804.55 : 42,510.29 = 16,657.40 : x
  2. Step 2: Convert to fraction form
    30,804.55/42,510.29 = 16,657.40/x
  3. Step 3: Cross multiply
    30,804.55x = 42,510.29 × 16,657.40
  4. Step 4: Simplify right side
    30,804.55x = 708,110,688.51
  5. Step 5: Solve for x
    x = 708,110,688.51/30,804.55
  6. Step 6: Final answer
    x = 22,987.21

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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.