Home / 28,509.80-39,341.93-15,762.23

Finding the Fourth Proportional to 28,509.80, 39,341.93 and 15,762.23

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Solution

The fourth proportional to 28,509.80, 39,341.93 and 15,762.23 is: 21,751.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,509.80 : 39,341.93 = 15,762.23 : x
  2. Step 2: Convert to fraction form
    28,509.80/39,341.93 = 15,762.23/x
  3. Step 3: Cross multiply
    28,509.80x = 39,341.93 × 15,762.23
  4. Step 4: Simplify right side
    28,509.80x = 620,116,642.61
  5. Step 5: Solve for x
    x = 620,116,642.61/28,509.80
  6. Step 6: Final answer
    x = 21,751.00

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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.